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Molgula Stock Photos and Images
RMF87FBP–Ascidiae or sea squirts: Boltenia echinata, Eugyra arenosa, Aplidium elegans, Polyclinum constellatum, Synoicum turgens, Botryllus schlosseri and Botrylloides leachii colonies. Chromolithograph by Adolf Glitsch from an illustration by Ernst Haeckel from Art Forms in Nature, Kunstformen der Natur, Liepzig, Germany, 1904.
RMW270TF–Archive image from page 30 of Danmarks fauna; illustrerede haandbøger over. Danmarks fauna; illustrerede haandbøger over den danske dyreverden.. danmarksfaunaill75dans Year: 1907 27 Fig. 11. Larver af forskellige søpunge. A Ciona intestinalis (efter Millar), B Molgula citrina (efter Grave), G Dendrodoa grossularia (efter Ivanova-Kazas), D Aplidium (efter Grave), E Glavelina lepadiformis, forreste del (efter Julin). a ampuller, o ocel, p klæbe- papiller, s statolith. halen; denne afstives af en enkeltrække af 35-40 store, udspændte celler (chordaceller, rygstreng), der som en aksestav løbe
RMP7F32A–Ascidiae or sea squirts: Boltenia echinata, Eugyra arenosa, Aplidium elegans, Polyclinum constellatum, Synoicum turgens, Botryllus schlosseri and Botrylloides leachii colonies. Chromolithograph by Adolf Glitsch from an illustration by Ernst Haeckel from Art Forms in Nature, Kunstformen der Natur, Liepzig, Germany, 1904.
RM2AJFNAG–The cell in development and inheritance . l nature as the yolk-nucleus ofLiLinbricits, Molgula, Cypris, Cymatogaster, or PJiolctis; and if it bea true attraction-sphere in the one case we must probably so regardit in all. This identification is, however, by no means complete; GROWTH AND DIFFERENTIATION OF THE GERM-CEILS 159 and even Munsons careful studies do not seem definitely to establishits connection with the attraction-sphere or centrosome of the lastoogonium-division. That a body simulating an attraction-sphere andcontaining a central granule may arise de novo in the cytoplasmis shown b
RMMABFR6–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . mdx Querschnitt durch den Endostyl von Molgula gigantea Cunn. (Nach Herdman.) Mittelstarke Vergrösserung. en = Entoderm des Kiemcndarines; dl = Dorsallippe; vi = Ventrallippe des Endostyls; v, = verdickte Epithel- region; mdz = Medianzone.
RMPG1H3E–. Zoology : for students and general readers . Zoology. 308 zooLoo y. of several species of Molgula, but it has the five long decid- uous appendages observed in young Molgulm. Among the compound Ascidians, Botryllus and Botrylloides have tailed young, while in other forms there is no metamorphosis, de- velopment being direct. Order 2. Thaliacea.âOi the whole, we may regard this order, represented by Salpa (Fig. 140), and Doliolum, as comprising the more specialized forms of Tunicates. Salpa is pelagic, one species occurring in abundance off the shores of Southern New England, while the others
RMW22WWR–Archive image from page 113 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex2bpt6a7daniuoft Year: 1899-1953 102 ASeiDIACEA liiircalc mill Imri'oluNilau isilii' Kcj;ion. Ostkiistc vou Nurdauicrika: ineyaril Sound. 25111; vor I'.ay Head. - Norrogansett Il.i> (K I ); iialu- Ilislio). Irlaii.l: Westkiiste: Blackstxi Hay (Hartincyor 11115 a). O.stkiiste: I.sland MaKii-, l-inu' District, 3.5 7111 (IiKliaiKiii W olhiston IQ07); Belfa.st. ijiiiii (Herdiiian 1S84). Fig. 6. Molgula citrina Aid. Hanc, Westkiiste von Schottland: Firth of Clyde: hanilash Bay
RM2AKB7NK–Report of the Commissioner - United States Commission of Fish and Fisheries . EXPLANATION OF PLATE XXXIII. Figure 246.— Cynthia partita, variety stellifera, (p. 701;) natural size. 247.—Cynthia carnea, (p. 701;) natural size. 248.—The same, (p. 701;) younger specimens, natural size. 249.—Eugyra pilularis, (p. 700;) natural size. 250.—Molgula Manhattensis, (p. 699;) smooth variety, natural size. 251.—Molgula arenata, (p. 699 ;) natural size. 252.—Botryllus Gouldii, (p. 702;) colony incrusting the stem of Tuhularia,somewhat enlarged. 253.—The same; one of the zcoids, enlarged ten diameters ; a,
RMMCNP67–. /.Ocm t ov Text-fig. 56. Molgula platei Hartmeyer (St. WS 742): A, specimen removed from test; B, dorsal tubercle, with ganglion and neural gland; C, gonad. Body wall. The body wall is also thin. Narrow but quite conspicuous longitudinal muscles pass from the siphons to about half way across the body. Circular and irregular oblique muscles are not very conspicuous or numerous on the body itself, but circular muscles are well developed round the siphons. Tentacles. Thirteen or fourteen much branched tentacles alternate in size. Hartmeyer (1914) noted thirty-two tentacles of three sizes. The l
![. The depths of the ocean; a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic. Oceanography. 534 DEPTHS OF THE OCEAN CHAP. I have already stated that the north and east coasts of Iceland are boreo - arctic areas. Even as far south as lat. 64° 17' N. and long. 140 44' W., that is to say, quite close in to the coast, the " Michael Sars " found purely arctic forms at a depth of 75 metres, namely, the prawn Sclerocrangon boreas and the ascidian Molgula retortiformis, together with Stock Photo](https://c8.alamy.com/comp/PFDK89/the-depths-of-the-ocean-a-general-account-of-the-modern-science-of-oceanography-based-largely-on-the-scientific-researches-of-the-norwegian-steamer-michael-sars-in-the-north-atlantic-oceanography-534-depths-of-the-ocean-chap-i-have-already-stated-that-the-north-and-east-coasts-of-iceland-are-boreo-arctic-areas-even-as-far-south-as-lat-64-17-n-and-long-140-44-w-that-is-to-say-quite-close-in-to-the-coast-the-quot-michael-sars-quot-found-purely-arctic-forms-at-a-depth-of-75-metres-namely-the-prawn-sclerocrangon-boreas-and-the-ascidian-molgula-retortiformis-together-with-PFDK89.jpg ". The depths of the ocean; a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic. Oceanography. 534 DEPTHS OF THE OCEAN CHAP. I have already stated that the north and east coasts of Iceland are boreo - arctic areas. Even as far south as lat. 64° 17' N. and long. 140 44' W., that is to say, quite close in to the coast, the " Michael Sars " found purely arctic forms at a depth of 75 metres, namely, the prawn Sclerocrangon boreas and the ascidian Molgula retortiformis, together with Stock Photo")
RMPFDK89–. The depths of the ocean; a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic. Oceanography. 534 DEPTHS OF THE OCEAN CHAP. I have already stated that the north and east coasts of Iceland are boreo - arctic areas. Even as far south as lat. 64° 17' N. and long. 140 44' W., that is to say, quite close in to the coast, the " Michael Sars " found purely arctic forms at a depth of 75 metres, namely, the prawn Sclerocrangon boreas and the ascidian Molgula retortiformis, together with
RMW15Y84–Archive image from page 192 of Descriptive catalogue of the Tunicata. Descriptive catalogue of the Tunicata in the Australian museum, Sydney, N.S.W . descriptivecatal1899aust Year: 1899 Fig. 4. -brsi. Fig. 11. ' W.A.H d-el. Fig. 12. Figs. 1-5.-MICBOCOSMUS RAMSAYI, n. ep. Figs. 6--8.-MICROCOSMUS AFFINIS, Heller. Figs. G-13.-MOLGULA BECUMBBNS, n. sp. Fig. 13.
RM2AWTN4W–Skrifter - Det Kongelige Norske Videnskabers Selskab . ererFjord-teil 3 c S pa c esO B uo c u ?o 0) £ w o te 6 6X) o c s c 3 s E CO r > i: .a;11 ^3 TS o it? c Oi o 23 B P3 c 3cau 0) > Eugyra arenosa .... x X X Molgula septentrionalis x Molgula oculalci .... x x X Molgula eugyroides . X X Styela riistica x x Styela lovenii x x X Pelonaia corriigata . x Polycarpa pomaria . x? X X X x x x x X x x Polycarpa fibrosa . . x x x Dendrodoa grossiilaria x Botryllus leachii .... x Corella parallelo- gramina x? x x x x X Ascidiella aspersa . . x? X Ascidia obliqua x? x x x x x x x X x Ascidia prnnii
RMMCNP5T–. Text-fig. 57. Molgula malvinensis Arnback (St. 159): A, specimen removed from test; B, oral tentacle; C, dorsal tubercle, with ganglion and neural gland; D, part of branchial wall. Remarks. As pointed out by van Name (1945) this species resembles M. occidentalis Traustedt. It is even more like M. pyriformis Herdman. From these two species it can be distinguished as shown in Table 36. M. pyriformis rests on a single specimen and as the differences separating it from M. malvinensis are not great it might be possible to unite it with that species if more specimens could be examined from the are
RMPF9E37–. Deutsche Südpolar-Expedition, 1901-1903, im Auftrage des Reichsamtes des Innern. Gauss (Ship); Scientific expeditions; Antarctica. V /rV iitnrq Kcimor. Fig 1-4 Atopogasler incerta n sp Fig5-9 Didemnum Leptoclinum biglans Slult Fig 10-12 Caesira Molgula; pyriFormis 'Herdm Flg 13-19 Oligocarpa megalorchis n gen n sp.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Deutsche Südpolar-Expedition (1901-1903); Drygalski, Erich
![Archive image from page 62 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex2bpt6a7daniuoft Year: 1899-1953 ASCIDIACEA 51 1858 C. Griffithsii, H. & A. Adams, Oen. MoU., v. 2 p. 595. 1891 C. G., Herdman in: I. Linn. Soc. London, v. 23 p. 571. 1899 C. Griffithii [sici], E. Perrier, Zool., u. 2 V p. 2350. 1903 C. griffiihsi, Hartmeyer in: Fauna arctica, v. 3 p. 189. 1909 C. g., Hartmeyer in: Broim's Kl. Ordn., v. 3 suppl. p. 1346, 1483. Die von Swederus (1885) mit Molgula ampulloides identificierte Art gehort nach Arnback-Christie- Linde (1922) teils zu M. Stock Photo](https://c8.alamy.com/comp/W1RH5C/archive-image-from-page-62-of-the-danish-ingolf-expedition-1899-1953-the-danish-ingolf-expedition-danishingolfex2bpt6a7daniuoft-year-1899-1953-ascidiacea-51-1858-c-griffithsii-h-a-adams-oen-mou-v-2-p-595-1891-c-g-herdman-in-i-linn-soc-london-v-23-p-571-1899-c-griffithii-sici-e-perrier-zool-u-2-v-p-2350-1903-c-griffiihsi-hartmeyer-in-fauna-arctica-v-3-p-189-1909-c-g-hartmeyer-in-broims-kl-ordn-v-3-suppl-p-1346-1483-die-von-swederus-1885-mit-molgula-ampulloides-identificierte-art-gehort-nach-arnback-christie-linde-1922-teils-zu-m-W1RH5C.jpg "Archive image from page 62 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex2bpt6a7daniuoft Year: 1899-1953 ASCIDIACEA 51 1858 C. Griffithsii, H. & A. Adams, Oen. MoU., v. 2 p. 595. 1891 C. G., Herdman in: I. Linn. Soc. London, v. 23 p. 571. 1899 C. Griffithii [sici], E. Perrier, Zool., u. 2 V p. 2350. 1903 C. griffiihsi, Hartmeyer in: Fauna arctica, v. 3 p. 189. 1909 C. g., Hartmeyer in: Broim's Kl. Ordn., v. 3 suppl. p. 1346, 1483. Die von Swederus (1885) mit Molgula ampulloides identificierte Art gehort nach Arnback-Christie- Linde (1922) teils zu M. Stock Photo")
RMW1RH5C–Archive image from page 62 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex2bpt6a7daniuoft Year: 1899-1953 ASCIDIACEA 51 1858 C. Griffithsii, H. & A. Adams, Oen. MoU., v. 2 p. 595. 1891 C. G., Herdman in: I. Linn. Soc. London, v. 23 p. 571. 1899 C. Griffithii [sici], E. Perrier, Zool., u. 2 V p. 2350. 1903 C. griffiihsi, Hartmeyer in: Fauna arctica, v. 3 p. 189. 1909 C. g., Hartmeyer in: Broim's Kl. Ordn., v. 3 suppl. p. 1346, 1483. Die von Swederus (1885) mit Molgula ampulloides identificierte Art gehort nach Arnback-Christie- Linde (1922) teils zu M.
RM2CER3PG–. Report upon the fauna of Liverpool Bay and the neighboring seas. most members ofthe genus Molgula and agrees with Molgula (Pera) chrys-tallma* Moller, from which species, however, it differstotally in external appearance and in the condition ofthe test. The dorsal tubercle (PL XIIL, fig. 6) is in that in-teresting, simple condition which I first described! in thecases of Molgula pijriformis and Eiigyra kerguelenensis,and which has since been found in the case of several otherspecies. The alimentary canal is very long, and is closely foldedupon itself throughout the whole length (PI. XIIL, fi
RMMCNP44–. 0.3 cm. Text-fig. 59. Molgula sabulosa (Quoy and Gaimard): A, specimen with test removed; B, dorsal tubercle. Dorsal tubercle. The dorsal tubercle has a characteristic horizontal S-shaped slit (Text-fig. 59 B) as described by Herdman (1882) and Kott (1952). Branchial sac. In the branchial sac there are seven folds on each side, each fold with about six longitudinal bars. There are no bars between the folds. Gut. The oesophagus is short and the stomach has a group of short rounded caeca (st.c). The primary intestinal loop is almost closed except at its anterior bend where the limbs are slight
RMPFJPYA–. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. ASCIDIACEA 95 Mediterrane Region. Westliches Mitteliiieer: Menorca (neue Angabe); Neapel (Traustedt 1883, Metcalf igoo). Adria: Golf von Triest (Graeffe 1903); Lesina (Heller 1877). Marmara Meer: (Ostrooumoff i8g6); Bosporus (Radde 1899). Die Verbreitung von Molgula oculata beschrJinkt sich auf das Mittelmeer und das ostatlantisch- boreale Gebiet. In erster Linie interessiert uns hier das Vorkommen in arktischen Gebieten. In der eigent- lichen arktischen Region fehlt die Art voUstandig. In
RMRWTHYY–Elements of zoölogy a Elements of zoölogy : a textbook elementsofzolo00tenn Year: c1875 Fio. 654. FIG. 655. Tunicate, Eugyra pilularis, Ver- rill. Tunicate, Molgula arena/a, Stimpson.
RM2CDBT7E–. The marine invertebrates and fishes of St. Andrews . ten loaded with apinkish-white creamy fluid, which appears to be made up chieflyof ova. The cellular border of each ovum is faintly greenishby transmitted light. Genus Molgula, E. Forbes.Molgula arenosa, Aid. & Hanc.; Alder, op. cit. p. 160.Abundant in deep water, and in the stomach of the cod andhaddock. Genus Cynthia, Sav.Cynthia, n. sp.A nodulated Ascidian like a raspberry or small brambleoccurred on the West Sands after a storm. Mr. Alder statedthat it was not C. morus, but a species unknown to him. Cynthia grossularia, Van Beneden ; F
RMMABFNW–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . A = Hauptinfundibulum mit zwei Centren. B = Hanptinfundibulum mit einem Centrum, aber zwei gleich gerichteten'Spiralen. C = Nebeninfandibula und Spalten ausserhalb des centralen Hauptinfundibulums gelegen. IS = Interspiraculargefässe in der primären Kie- menwand ; ks = Kiemenspalten; Ics^ = zweites Centrum mit inverser Spirale. Aus dem Kiemenkorb einer Molgula FilhoU Pizou. Das secundäre innere Gitterwerk ist nicht eingezeichnet. (Nach Pizon.) einander, sondern um grosse centrale primäre
RMPFHCC1–. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... . Fig. 70. Molgulidae. Tarmslyngens forløb og kønsorganets placering, alle set fra venstre. A Molgula manhattensis (efter Van Name), B M. siphonalis (efter Van Name), C M. occulta (orig)., D M. citrina (efter Van Name), E M. complanata (omtegnet efter Huus), F M. kiaeri (efter à rnbÃ¥ck-Christie-Llnde).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
RMT1HEKG–Discovery reports (1962) Discovery reports discoveryreports30inst Year: 1962 Text-fig. 55. Molgula falsensis Millar (St. 91): A, intact specimen; B, dorsal tubercle; C, part of branchial wall. Gut. The primary loop of the intestine is almost closed, and the secondary loop very open. Gonads. The left gonad occupies the secondary gut loop and the right gonad lies immediately above the renal sac. The sac-like ovary (ov.) has an upturned oviduct with crescentic opening, and is fringed by numerous testis follicles (t). Distribution. False Bay, South Africa. Molgula platei Hartmeyer (Text-fig. 56;
RM2CE06TC–. The ascidians collected by the United States fisheries bureau steamer Albatross on the coast of California during the summer of 1904 . ged.Fig. 4. A tentacle of the first order. Fig. 5. The ganglion, hypophysis, and meandering course of the periphar-yngeal band, dorsal view. Fig. 6. One side of a branchial fold. Some of the stigmata are moreelongate and curved than any shown in this figure. Figs. 7 and 8.—Molgula re</iilurit>s. ^J-•::••.••:••:•> f^f|i-:S:fei, .1 • .^-.,, . - ,r /L- T , ^ .6. -.1: .. PLATE 2. Figs. 17 to 19.—Boltenia ecliinata. Fig. 17. The whole animal from which
RMMABFPW–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Fig. 80. Dorsale und hintere Wand des Kieraendarmes und die benachbarten Regionen einer Annrella roscovita Lac, von innen gesehen. (Nach Lacaze-Duthiers.) Fig. 81. Dieselben Regionen einer Ctenicella (Molgula) appendiculata Hell, von innen betrachtet. (Nach Lacaze-Duthiers.) df = Dorsalfalte; es --= Endostyl; f = Falten des Kiemendarras; ß = Flinimerbogen; fg = Flimmergrube-, g = Ganglion; n = Nervenstamni; oe = Oesophaguseingang; r = Retropharyngealband; t = Mundtentakel. keit und Unabh
RMPFDR65–. Den Norske Nordhavs-expedition, 1876-1878. Scientific expeditions; Marine animals -- Norwegian Sea; Marine animals -- Arctic regions; Norwegian Sea. t7. 79.. Johan Kiær, del. Lith-Anst. Julius Klir..-: Fiq.i-2,Ascidia venosa. 0. F Mull. Rg.S-Z Molguld arcticei, nov. sp. Fig. 8'12,Molgula nowegica nov sp. Fig 13-15, Fug gra translucida- nov. sp. Fig. 16-19, Faraniolgula rava. nov. sp.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the origi
RMT0DCG8–Dr HG Bronn's Klassen und Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild drhgbronnsklasse31bron Year: 1893-1911 Unregelmässigkeiten in der Molguliden-Kionic 395 / 7f- Xlff^'-^- 19, . ...JiS ..If ganz unregelmässig stehen (He'rdman, 1899). Diese Kiemenformen führen zu Asco'pefa gigantea und Äs. pedunculata hinüber, bei denen fast im ganzen Kiemenbereich unregelmässige Spaltenvertheilung herrscht (vgl, oben p. 392). Sehr eigenartig erweist sich die Kieme von Molgula reciimhens, weil hier Querreihen langgestreckter Spiracula, Gruppen sp
RMRN42MY–. Animals of the seashore. Marine animals -- Atlantic Coast. 1. Amarcucium pellucidum Leidy 2. Amaroucium constellatum Verrill 3. Molgula arenata Stimpson. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Richards, Horace Gardiner, 1906-. Boston, B. Humphries, inc
![. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Querschnitte durch drei verschiedene Embryonalstadien der Molgula echinosiphonica. (Nach Damas). Circa '^^"/j. In A ist nur der ventrale Theil des Schnittes gezeichnet worden. cm = Aeusserer Celluloscmantel; ec = Ektodermepithel; M = Kieniendann; vis = Mescnchymzellen; ns = Nierensack; 2^h = Primäres Herzbläschen; sh = Sinnesblaso; st = Statolith. standen, das weiterhin nur an Grösse zuzunehmen und sich in besonderer Weise histologisch zu differenziren hat (Textfig. 191 C). Herz und Stock Photo](https://c8.alamy.com/comp/MABF2W/dr-hg-bronns-klassen-und-ordnungen-des-thier-reichs-wissenschaftlich-dargestellt-in-wort-und-bild-querschnitte-durch-drei-verschiedene-embryonalstadien-der-molgula-echinosiphonica-nach-damas-circa-quotj-in-a-ist-nur-der-ventrale-theil-des-schnittes-gezeichnet-worden-cm-=-aeusserer-celluloscmantel-ec-=-ektodermepithel-m-=-kieniendann-vis-=-mescnchymzellen-ns-=-nierensack-2h-=-primres-herzblschen-sh-=-sinnesblaso-st-=-statolith-standen-das-weiterhin-nur-an-grsse-zuzunehmen-und-sich-in-besonderer-weise-histologisch-zu-differenziren-hat-textfig-191-c-herz-und-MABF2W.jpg ". Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Querschnitte durch drei verschiedene Embryonalstadien der Molgula echinosiphonica. (Nach Damas). Circa '^^"/j. In A ist nur der ventrale Theil des Schnittes gezeichnet worden. cm = Aeusserer Celluloscmantel; ec = Ektodermepithel; M = Kieniendann; vis = Mescnchymzellen; ns = Nierensack; 2^h = Primäres Herzbläschen; sh = Sinnesblaso; st = Statolith. standen, das weiterhin nur an Grösse zuzunehmen und sich in besonderer Weise histologisch zu differenziren hat (Textfig. 191 C). Herz und Stock Photo")
RMMABF2W–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Querschnitte durch drei verschiedene Embryonalstadien der Molgula echinosiphonica. (Nach Damas). Circa '^^"/j. In A ist nur der ventrale Theil des Schnittes gezeichnet worden. cm = Aeusserer Celluloscmantel; ec = Ektodermepithel; M = Kieniendann; vis = Mescnchymzellen; ns = Nierensack; 2^h = Primäres Herzbläschen; sh = Sinnesblaso; st = Statolith. standen, das weiterhin nur an Grösse zuzunehmen und sich in besonderer Weise histologisch zu differenziren hat (Textfig. 191 C). Herz und
RMPFHCBT–. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 176 svage behåring og ved den længdestribning, der fremkommer ved at gællesækkens folder skinner gennem kutikulaen, på- faldende om et lille stikkelsbær, og arten fortjener i langt højere grad end Dendrodoa navnet stikkelsbærsøpung. Mundtentaklerne af meget forskellig størrelse og forgrening; der er et antal kortere eller længere ugrenede tentakler, 6-7 bipinnate tentakler og et lignende antal meget store, tripinnate.. Fig. 74*. Molgula citrina. Fimregrubens åbning er C-formet med åbningen højrevendt; ryglisten er en bred
RMT0DEN1–Dr HG Bronn's Klassen und Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild drhgbronnsklasse31bron Year: 1893-1911 ks- A = Hauptinfundibulum mit zwei Centren. B = Hanptinfundibulum mit einem Centrum, aber zwei gleich gerichteten'Spiralen. C = Nebeninfandibula und Spalten ausserhalb des centralen Hauptinfundibulums gelegen. IS = Interspiraculargefässe in der primären Kie- menwand ; ks = Kiemenspalten; Ics^ = zweites Centrum mit inverser Spirale. Aus dem Kiemenkorb einer Molgula FilhoU Pizou. Das secundäre innere Gitterwerk ist nicht eing
RMRGHXGR–. Bulletin of the Bureau of Fisheries. Fisheries; Fish culture. BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 409. Chart 191.—Molgula manhattensis.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Bureau of Fisheries. Washington, D. C. : Govt. Print. Off.
RMMABFP4–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . 19, . ...JiS ..If ganz unregelmässig stehen (He'rdman, 1899). Diese Kiemenformen führen zu Asco'pefa gigantea und Äs. pedunculata hinüber, bei denen fast im ganzen Kiemenbereich unregelmässige Spaltenvertheilung herrscht (vgl, oben p. 392). Sehr eigenartig erweist sich die Kieme von Molgula reciimhens, weil hier Querreihen langgestreckter Spiracula, Gruppen spiraliger und ge- krümmter Spalten ^^' und ganz regellos vertheilte, verschie- den geformte Perfo- rationen neben ein- ander vorkom
RMPFBRMP–. Descriptive catalogue of the Tunicata in the Australian museum, Sydney, N.S.W. Tunicata. Fig. 4. -brsi. Fig. 11.. ' W.A.H d-el. Fig. 12. Figs. 1-5.-MICBOCOSMUS RAMSAYI, n. ep. Figs. 6--8.-MICROCOSMUS AFFINIS, Heller. Figs. G-13.-MOLGULA BECUMBBNS, n. sp. Fig. 13.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Australian Museum; Herdman, W. A. (William Abbott), Sir, 1858-1924. Liverpool, T. Dobb & co.
RMT0D9M1–Dr HG Bronn's Klassen und Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild drhgbronnsklasse31bron Year: 1893-1911 358 Ascidiuu. auffallend, Cynthia Roretm Dräsche), üeberdies kann man mehrfach bei Cynthien beobachten, wie dieliückenzapfeninForm, Grösse und Anordnung an versclnedenen Stellen ein und derselben Dorsalfalte variiren. Auch bei Molgula kommen vorn und hinten an der Dorsalfalte Bauverschieden- heiten vor. 3Iolgula conchata Sluiter hat eine verhältnissmässig schmale, grösstentheils glattrandige Falte, nur am hinteren Ende finden
RMRGHXHJ–. Bulletin of the Bureau of Fisheries. Fisheries; Fish culture. 4o8 BULLETIN OF THE BUREAU OF FISHERIES.. Chart 190.—Molgula arenata and Eugyra glutinans. The stars of solid black denote those stations from which the first-named species was recorded, the dotted stars denoting those stations from which the second was recorded. Owing to the probability that these two species were in some cases confused, their occurrence has been plotted upon a single chart.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and
RMMCNP5B–. Text-fig. 55. Molgula falsensis Millar (St. 91): A, intact specimen; B, dorsal tubercle; C, part of branchial wall. Gut. The primary loop of the intestine is almost closed, and the secondary loop very open. Gonads. The left gonad occupies the secondary gut loop and the right gonad lies immediately above the renal sac. The sac-like ovary (ov.) has an upturned oviduct with crescentic opening, and is fringed by numerous testis follicles (t). Distribution. False Bay, South Africa. Molgula platei Hartmeyer (Text-fig. 56; PI. V, fig. 7) Molgula platei Hartmeyer, 1914, p. 8, figs. 2, 3. For synonym
RMPFJPY4–. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 102 ASeiDIACEA liiircalc mill Imri'oluNilau isilii' Kcj;ion. Ostkiistc vou Nurdauicrika: ineyaril Sound. 25111; vor I'.ay Head. - Norrogansett Il.i> (K I ); iialu- Ilislio). Irlaii.l: Westkiiste: Blackstxi Hay (Hartincyor 11115 a). O.stkiiste: I.sland MaKii-, l-inu' District, 3.5 7111 (I!iKliaiKiii W olhiston IQ07); Belfa.st. ijiiiii (Herdiiian 1S84).. Fig. 6. Molgula citrina Aid. Hanc, Westkiiste von Schottland: Firth of Clyde: hanilash Bay; Bute; Loch Ranza (Arran) (Herdinan iS8ya, R
RMRR5FAY–. [A biological survey of the waters of Woods Hole and vicinity. Marine animals; Marine plants. 408 BULLETIN OF THE BUREAU OF FISHERIES.. Chart 190.—Molgula arenata and Eugyra glutinans. The stars of solid black denote those stations from which the first-named species was recorded, the dotted stars denoting those stations from which the second was recorded. Owing to the probability that these two species were in some cases confused, their occurrence has been plotted upon a single chart.. Please note that these images are extracted from scanned page images that may have been digitally enhanced
![. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Verzweigter hohler Mantelfortsatz von Culeolus Murrayi Herd. (Nach Herd- man.) -'"1^. ^, . , pz = Blutzellenansamnilung; t.l'^ = Bündel von drei verzweigten Mantel- m j^ ^ ^e l -i. •>. r i , , , . f 1, . Tentakelfortsatze zweiter Ordnung, fortsätzen von Molgula (Anurella) rof^- covita mit anhaftenden kleineren Steinen. (Nach Lacaze-Duthiers.) ="*7i. a = Wurzelförinigc Verzweigungen der Mantelfortsätze; b = Anhaftende Fremdkörper. zeigen über dem die Blutbahnen umschliessend Stock Photo](https://c8.alamy.com/comp/MABFWH/dr-hg-bronns-klassen-und-ordnungen-des-thier-reichs-wissenschaftlich-dargestellt-in-wort-und-bild-verzweigter-hohler-mantelfortsatz-von-culeolus-murrayi-herd-nach-herd-man-quot1-pz-=-blutzellenansamnilung-tl-=-bndel-von-drei-verzweigten-mantel-m-j-e-l-i-gt-r-i-f-1-tentakelfortsatze-zweiter-ordnung-fortstzen-von-molgula-anurella-rof-covita-mit-anhaftenden-kleineren-steinen-nach-lacaze-duthiers-=quot7i-a-=-wurzelfrinigc-verzweigungen-der-mantelfortstze-b-=-anhaftende-fremdkrper-zeigen-ber-dem-die-blutbahnen-umschliessend-MABFWH.jpg ". Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Verzweigter hohler Mantelfortsatz von Culeolus Murrayi Herd. (Nach Herd- man.) -'"1^. ^, . , pz = Blutzellenansamnilung; t.l'^ = Bündel von drei verzweigten Mantel- m j^ ^ ^e l -i. •>. r i , , , . f 1, . Tentakelfortsatze zweiter Ordnung, fortsätzen von Molgula (Anurella) rof^- covita mit anhaftenden kleineren Steinen. (Nach Lacaze-Duthiers.) ="*7i. a = Wurzelförinigc Verzweigungen der Mantelfortsätze; b = Anhaftende Fremdkörper. zeigen über dem die Blutbahnen umschliessend Stock Photo")
RMMABFWH–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Verzweigter hohler Mantelfortsatz von Culeolus Murrayi Herd. (Nach Herd- man.) -'"1^. ^, . , pz = Blutzellenansamnilung; t.l'^ = Bündel von drei verzweigten Mantel- m j^ ^ ^e l -i. •>. r i , , , . f 1, . Tentakelfortsatze zweiter Ordnung, fortsätzen von Molgula (Anurella) rof^- covita mit anhaftenden kleineren Steinen. (Nach Lacaze-Duthiers.) ="*7i. a = Wurzelförinigc Verzweigungen der Mantelfortsätze; b = Anhaftende Fremdkörper. zeigen über dem die Blutbahnen umschliessend
RMPFHCBP–. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 181 kegleformede papiller, der i sjældne tilfælde kan være ekstremt udviklede. Overfladen er så godt som aldrig begroet med fremmedlegemer. Sifonerne er ganske korte, kappesifonen sidder modsat stilkens udspring, mens mundsifonen er rykket. Fig. 76*. Molgula griffithsii. så langt ned på siden, at to akser gennem sifonerne vil skære hinanden under en ret vinkel. De talrige tentakler er af meget forskellig længde; de største er pinnate (eventuelt bi- eller tripinnate). Fimregrubens rand er G-formet med den konkave side vende
RMRR5F9A–. [A biological survey of the waters of Woods Hole and vicinity. Marine animals; Marine plants. 4o8 BULLETIN OF THE BUREAU OF FISHERIES.. Chart 190.—Molgula arenata and Eugyra glutinans. The stars of solid black denote those stations from which the first-named species was recorded, the dotted stars denoting those stations from which the second was recorded. Owing to the probability that these two species were in some cases confused, their occurrence has been plotted upon a single chart.. Please note that these images are extracted from scanned page images that may have been digitally enhanced
![. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Stück aus dem Kiemenkorb einer Eugyra kerguelenensis Herd, von innen gesellen •'"'"/i- (Nach Herdman.) ?7 == inneres Längsgefäss; r;; ^ Eadiärgefäss,'an den Maschenwinkeln ent- springend; rffj = Kadiärgefäss, seitlieh entspringend; sg = Spiralgefäss; SS u. ss^ = die beiden neben einander verlaufenden Spiralspalten; tm = Transversalmembran; tr = Transversalgefäss. Spiralen neue Spiracula sich anlegen, so dass eine einheitliche Gruppe entsteht. Bei Molgula Filholi und, weniger vo Stock Photo](https://c8.alamy.com/comp/MABFP3/dr-hg-bronns-klassen-und-ordnungen-des-thier-reichs-wissenschaftlich-dargestellt-in-wort-und-bild-stck-aus-dem-kiemenkorb-einer-eugyra-kerguelenensis-herd-von-innen-gesellen-quotquoti-nach-herdman-7-==-inneres-lngsgefss-r-eadirgefssan-den-maschenwinkeln-ent-springend-rffj-=-kadirgefss-seitlieh-entspringend-sg-=-spiralgefss-ss-u-ss-=-die-beiden-neben-einander-verlaufenden-spiralspalten-tm-=-transversalmembran-tr-=-transversalgefss-spiralen-neue-spiracula-sich-anlegen-so-dass-eine-einheitliche-gruppe-entsteht-bei-molgula-filholi-und-weniger-vo-MABFP3.jpg ". Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Stück aus dem Kiemenkorb einer Eugyra kerguelenensis Herd, von innen gesellen •'"'"/i- (Nach Herdman.) ?7 == inneres Längsgefäss; r;; ^ Eadiärgefäss,'an den Maschenwinkeln ent- springend; rffj = Kadiärgefäss, seitlieh entspringend; sg = Spiralgefäss; SS u. ss^ = die beiden neben einander verlaufenden Spiralspalten; tm = Transversalmembran; tr = Transversalgefäss. Spiralen neue Spiracula sich anlegen, so dass eine einheitliche Gruppe entsteht. Bei Molgula Filholi und, weniger vo Stock Photo")
RMMABFP3–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Stück aus dem Kiemenkorb einer Eugyra kerguelenensis Herd, von innen gesellen •'"'"/i- (Nach Herdman.) ?7 == inneres Längsgefäss; r;; ^ Eadiärgefäss,'an den Maschenwinkeln ent- springend; rffj = Kadiärgefäss, seitlieh entspringend; sg = Spiralgefäss; SS u. ss^ = die beiden neben einander verlaufenden Spiralspalten; tm = Transversalmembran; tr = Transversalgefäss. Spiralen neue Spiracula sich anlegen, so dass eine einheitliche Gruppe entsteht. Bei Molgula Filholi und, weniger vo
RMPFHCXR–. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 27. Fig. 11. Larver af forskellige søpunge. A Ciona intestinalis (efter Millar), B Molgula citrina (efter Grave), G Dendrodoa grossularia (efter Ivanova-Kazas), D Aplidium (efter Grave), E Glavelina lepadiformis, forreste del (efter Julin). a ampuller, o ocel, p klæbe- papiller, s statolith. halen; denne afstives af en enkeltrække af 35-40 store, udspændte celler (chordaceller, rygstreng), der som en aksestav løber ned midt gennem halen. På begge sider ligger svagt skråtstillede længderækker af muskelceller, hvis kontrakti
RMRDJ73F–. Text-book of embryology. Embryology. XVII PEOTOCHOEDATA 631 exactly to what would have developed out of them had their sister blastomeres remained alive. Conklin therefore, may fairly claim to have proved that these coloured cytoplasms are definite organ-forming substances. He has P'''^ n. *^*^s™ila^ substances exist in the eggs of Ciona, Molgula, and Phallusia (1911), only that these substances are not distinguish- able from one another in the living egg, but require staining to ditierentiate them from one another. But now the question arises: if the organs of the larva are determined by su
RMMABF30–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . cm cm à und B = Zwei Entwickelungsstadien der Molgula ynacrosiphonica. (Nach Kupffer.) C, B, E = Drei junge Ãnurella, die eben den Follikel gesprengt haben, in amöboiden Be- wegungen kriechend. (Nach Lacaze-Duthiers.) ^'^/,. cm = Aeusserer Cellulosemantel; ec = Hautepithel; en = Entoderm; f = Follikel; hf = Haftfortsätze; ig = Ingestionsöffnung; ä = Anlage der Intestinalschleifc; M = Kiemendarm; ms = Mesodermale (?) Zellgruppe; n = Dorsaler Nervenstrang; tz â = Testazellen. Fall kön
RMPFHCBX–. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 174 området mellem folderne er de næsten lige og løber på langs, på folderne derimod danner de velafgrænsede spiralsystemer i væggen af infundibulae; infundibulae er todelt i bunden. Leveren har en foldet væg og består af to udposninger fra mavens ene side. Tarmslyngen (fig. 70 G) er ret kort og den fremad- og tilbageløbende del ligger tæt op ad hinanden; hos. Fig. 73*. Molgula occulta. mindre eksemplarer åbnes slyngen noget fortil. Kønsorganerne er mælkehvide og ret fyldige, ovale eller nyreformede. Ovariet opfylder de ce
RMRH2Y1A–. The British Tunicata; an unfinished monograph. Sea squirts; Tunicata. 52 BRITISH TUNICATA. The mantle of this species (PL XXV, figs. 2 and 3) is very delicate and transparent; but the radiating1 muscles at the base of the tubes are well developed. The branchial folds (fig. 40) are rather narrow and : •. FIG. 40.—Part of branchial sac of Molgula simplex. Much enlarged. have on each side two or three membranous bars or rods and one immediately at the base. The spirals are large and distinct, though without perfect regularity; there appears to be but one to each branchial pouch; the meshes are
RMMCNP0C–. Text-fig. 58. Molgula setigera Arnback f. georgiana (St. 474): A, specimen with test removed; B, dorsal tubercle; C, gonad with one sperm duct; D, part of gonad with three sperm ducts. Molgula setigera f. marioni (St. 1563): E, specimen with test removed; F, dorsal tubercle; G, gonad. Gonads. The form of the gonads (Text-fig. 58 C, D) is fairly constant, resembling that of the type specimens, but the gonoducts are variable. Usually the oviduct (od.) is moderately long, but in at least one specimen is quite short; it is always directed up towards the atrial siphon. The sperm ducts (s.d.) vary
RMPFHCCA–. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 163. Fig. 69. Molgulidae. A mund- og kappeåbning set fra oven, B mund- tentakler af Molgula siphonalis, C samme af M. manhattensis, D udsnit af gællesækken af M. manhattensis, E mave og lever af M. complanata, F højre kønsorgan og nyresæk af M. citrina (set gennem kappevæggen), G venstre kønsorgan af M. manhattensis (set fra kappeindersiden). A efter Lacaze-Duthiers, B-F efter Van Name, G original, e endostyl, n nyresæk, o ægledermunding, ov ovarie, r rygliste, s sædledermunding, t testikel. 11*. Please note that these ima
RMRH2XXF–. The British Tunicata; an unfinished monograph. Sea squirts; Tunicata. FIG. 45.—Part of branchial sac of Molgula inconspicua. Much enlarged. but nevertheless quite determinable; the primary vessels are pretty distinct, and the radiating ones more simple and parallel than in most of the species, and there are four or five membranous rods on each side of the folds, which are strongly arched; the endo- style is equally deeply curved and is long; the oral lamina is short, the space between the mouth and branchial tubercle being rather contracted; it is narrow, smooth, and a little widened as it a
![. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . oe c' ""•' hsi^ A Junge Molgula ampulloides, von links gesehen. (Nach Selys-Longchamps und Damas.) '""/i- ^ ""^^ ^' Theilung der beiden ersten primären Protostigmata in die vier secundären hei Ciona. (Nach Julin.) c = Aeusserer Cellulosemantel; cl = Cloakenhöhle; e = Egestionsöffnung; es = Endostyl; fb = Fhmmerhogen; fg = Flimmergruhe; gel = Geschlechstsdrüse; i = Ingestionsöffnung; Ä;Sj, its.2, Tcs^ und Tcs^ = Die vier ersten secundären Protostigmata; hsi u Stock Photo](https://c8.alamy.com/comp/MABF3F/dr-hg-bronns-klassen-und-ordnungen-des-thier-reichs-wissenschaftlich-dargestellt-in-wort-und-bild-oe-c-quotquot-hsi-a-junge-molgula-ampulloides-von-links-gesehen-nach-selys-longchamps-und-damas-quotquoti-quotquot-theilung-der-beiden-ersten-primren-protostigmata-in-die-vier-secundren-hei-ciona-nach-julin-c-=-aeusserer-cellulosemantel-cl-=-cloakenhhle-e-=-egestionsffnung-es-=-endostyl-fb-=-fhmmerhogen-fg-=-flimmergruhe-gel-=-geschlechstsdrse-i-=-ingestionsffnung-sj-its2-tcs-und-tcs-=-die-vier-ersten-secundren-protostigmata-hsi-u-MABF3F.jpg ". Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . oe c' ""•' hsi^ A Junge Molgula ampulloides, von links gesehen. (Nach Selys-Longchamps und Damas.) '""/i- ^ ""^^ ^' Theilung der beiden ersten primären Protostigmata in die vier secundären hei Ciona. (Nach Julin.) c = Aeusserer Cellulosemantel; cl = Cloakenhöhle; e = Egestionsöffnung; es = Endostyl; fb = Fhmmerhogen; fg = Flimmergruhe; gel = Geschlechstsdrüse; i = Ingestionsöffnung; Ä;Sj, its.2, Tcs^ und Tcs^ = Die vier ersten secundären Protostigmata; hsi u Stock Photo")
RMMABF3F–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . oe c' ""•' hsi^ A Junge Molgula ampulloides, von links gesehen. (Nach Selys-Longchamps und Damas.) '""/i- ^ ""^^ ^' Theilung der beiden ersten primären Protostigmata in die vier secundären hei Ciona. (Nach Julin.) c = Aeusserer Cellulosemantel; cl = Cloakenhöhle; e = Egestionsöffnung; es = Endostyl; fb = Fhmmerhogen; fg = Flimmergruhe; gel = Geschlechstsdrüse; i = Ingestionsöffnung; Ä;Sj, its.2, Tcs^ und Tcs^ = Die vier ersten secundären Protostigmata; hsi u
RMPFHCC0–. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 169 gennem kutikulaen, er grønlig, leverdivertiklerne kraftigt grønne, kønsorganerne hvide eller rosa. 10-16, oftest 12-15, rigt forgrenede og buskede mundten- takler (fig. 69C), hvoraf de 4 gerne tilhører 1., 4 2. og 7-8 3. orden; hertil kommer et større antal ganske korte, ugrenede tentakler. Fimregrubens rand G-formet eller hesteskoformet. if- ^ li Fig. 71*. Molgula manhattensis. med åbningen bagtil eller til højre. Ryglistens rand er glat, men kan dog i sin bageste del bære tandagtige fremspring. Gællesækken med 6 fold
RMRMK5DD–. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. FURTHER DESCRIPTIONS OF SOUTH AFRICAN ASCIDIANS 207. Fig. 43. Comparison of gut loop and gonads of A, Molgula falsensis; B, Molgula scutata, C, Molgula cryptica; and D, Molgula conchata.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. South African Museum. Cape Town : The Museum
RMMABF36–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . A Schematische Darstellung der Bildung und Theilung der sechs secundären Proto- stigmata hei Molgula ampiilloides. B Schema der Bildung der Spaltenreihen und Doppel- spiralreihen in älteren Stadien. (Nach Selys-Longchamps und Damas). df = Dorsalfalte; es = Endostylseite; isi—isvi = Sechs interspiraculare Längsgefässe (sinus interspiraux), die die sieben ersten Sichelspalten und die aus ihnen hervor- gehenden Doppelspiralen voneinander trennen. Igi—lgwi = Die sechs ersten inneren Längsgef
RMPFJPXT–. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. ASCIDIACEA 119 Island: ohne nahere Angabe (Hartmeyer 1903); Ostkiiste: Beru Fjord, 32 in (i>Diana(i); I^odinundar I'jord (neue Angabe); Kiisten- bank vor Siidostisland: 64''i7'N. I4°44'W., 7.5 m (-1-5.09° C. in 74 in) (Bjcrkan 1905). Baren InscI: 74°3(V X. i.S'i.i'O., agm; 74°3'N. I9''7'O,, 84111 (Hartmeyer 1903, 1904).. Fig. 8. Molgula retortifonnis 'crrill. Spitzbergengebiet: zw Biiren- luul Hoffnungs In.sel. 76°3o'N. 23°07'O., 4Sm; Hoffnung.s Iiisel, 11 Sni. s., 76°I2'X. 24°
RMRH2Y0W–. The British Tunicata; an unfinished monograph. Sea squirts; Tunicata. FIG. 40.—Part of branchial sac of Molgula simplex. Much enlarged. have on each side two or three membranous bars or rods and one immediately at the base. The spirals are large and distinct, though without perfect regularity; there appears to be but one to each branchial pouch; the meshes are wide and irregular in size and form;. FIG. 41.—A tentacle of Molgula simplex. Highly magnified. the radiating vessels are distinct and pretty-regularly arranged. The branches of the tentacular filaments (fig. 41) are rather irregularly
![. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . A Stück aus einem frontalen Längsschnitt durch Molgula nana; der Nierensaclc, Herz und Pericard sind quer durchschnitten, ^^^/j. B Dieselbe Eegion von Molgula occulta; der selir weit nach hinten reichende Ilinter- abschnitt des hier stark collabirten Nieronsackos ist niclit eingezeichnet, und ebenso fehlt der diesen begleitende Theil der Herz- und Pericardialwand. ""Vi- a = Aussenwand der Peribranchialräume; b = Innenwand des Peribranchialrauras, Aussenepithel der Kieme; bb = B Stock Photo](https://c8.alamy.com/comp/MABF72/dr-hg-bronns-klassen-und-ordnungen-des-thier-reichs-wissenschaftlich-dargestellt-in-wort-und-bild-a-stck-aus-einem-frontalen-lngsschnitt-durch-molgula-nana-der-nierensaclc-herz-und-pericard-sind-quer-durchschnitten-j-b-dieselbe-eegion-von-molgula-occulta-der-selir-weit-nach-hinten-reichende-ilinter-abschnitt-des-hier-stark-collabirten-nieronsackos-ist-niclit-eingezeichnet-und-ebenso-fehlt-der-diesen-begleitende-theil-der-herz-und-pericardialwand-quotquotvi-a-=-aussenwand-der-peribranchialrume-b-=-innenwand-des-peribranchialrauras-aussenepithel-der-kieme-bb-=-b-MABF72.jpg ". Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . A Stück aus einem frontalen Längsschnitt durch Molgula nana; der Nierensaclc, Herz und Pericard sind quer durchschnitten, ^^^/j. B Dieselbe Eegion von Molgula occulta; der selir weit nach hinten reichende Ilinter- abschnitt des hier stark collabirten Nieronsackos ist niclit eingezeichnet, und ebenso fehlt der diesen begleitende Theil der Herz- und Pericardialwand. ""Vi- a = Aussenwand der Peribranchialräume; b = Innenwand des Peribranchialrauras, Aussenepithel der Kieme; bb = B Stock Photo")
RMMABF72–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . A Stück aus einem frontalen Längsschnitt durch Molgula nana; der Nierensaclc, Herz und Pericard sind quer durchschnitten, ^^^/j. B Dieselbe Eegion von Molgula occulta; der selir weit nach hinten reichende Ilinter- abschnitt des hier stark collabirten Nieronsackos ist niclit eingezeichnet, und ebenso fehlt der diesen begleitende Theil der Herz- und Pericardialwand. ""Vi- a = Aussenwand der Peribranchialräume; b = Innenwand des Peribranchialrauras, Aussenepithel der Kieme; bb = B
![. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. ASCIDIACEA 51 1858 C. Griffithsii, H. & A. Adams, Oen. MoU., v. 2 p. 595. 1891 C. G., Herdman in: I. Linn. Soc. London, v. 23 p. 571. 1899 C. Griffithii [sici], E. Perrier, Zool., u. 2 V p. 2350. 1903 C. griffiihsi, Hartmeyer in: Fauna arctica, v. 3 p. 189. 1909 C. g., Hartmeyer in: Broim's Kl. Ordn., v. 3 suppl. p. 1346, 1483. Die von Swederus (1885) mit Molgula ampulloides identificierte Art gehort nach Arnback-Christie- Linde (1922) teils zu M. chrystallina, teils zu Rhizomolgula.. Stock Photo](https://c8.alamy.com/comp/PFJR01/the-danish-ingolf-expedition-marine-animals-arctic-regions-scientific-expeditions-arctic-regions-ascidiacea-51-1858-c-griffithsii-h-amp-a-adams-oen-mou-v-2-p-595-1891-c-g-herdman-in-i-linn-soc-london-v-23-p-571-1899-c-griffithii-sici-e-perrier-zool-u-2-v-p-2350-1903-c-griffiihsi-hartmeyer-in-fauna-arctica-v-3-p-189-1909-c-g-hartmeyer-in-broims-kl-ordn-v-3-suppl-p-1346-1483-die-von-swederus-1885-mit-molgula-ampulloides-identificierte-art-gehort-nach-arnback-christie-linde-1922-teils-zu-m-chrystallina-teils-zu-rhizomolgula-PFJR01.jpg ". The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. ASCIDIACEA 51 1858 C. Griffithsii, H. & A. Adams, Oen. MoU., v. 2 p. 595. 1891 C. G., Herdman in: I. Linn. Soc. London, v. 23 p. 571. 1899 C. Griffithii [sici], E. Perrier, Zool., u. 2 V p. 2350. 1903 C. griffiihsi, Hartmeyer in: Fauna arctica, v. 3 p. 189. 1909 C. g., Hartmeyer in: Broim's Kl. Ordn., v. 3 suppl. p. 1346, 1483. Die von Swederus (1885) mit Molgula ampulloides identificierte Art gehort nach Arnback-Christie- Linde (1922) teils zu M. chrystallina, teils zu Rhizomolgula.. Stock Photo")
RMPFJR01–. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. ASCIDIACEA 51 1858 C. Griffithsii, H. & A. Adams, Oen. MoU., v. 2 p. 595. 1891 C. G., Herdman in: I. Linn. Soc. London, v. 23 p. 571. 1899 C. Griffithii [sici], E. Perrier, Zool., u. 2 V p. 2350. 1903 C. griffiihsi, Hartmeyer in: Fauna arctica, v. 3 p. 189. 1909 C. g., Hartmeyer in: Broim's Kl. Ordn., v. 3 suppl. p. 1346, 1483. Die von Swederus (1885) mit Molgula ampulloides identificierte Art gehort nach Arnback-Christie- Linde (1922) teils zu M. chrystallina, teils zu Rhizomolgula..
RMRD9KD7–. Zoology : for students and general readers . Zoology. 308 zooLoo y. of several species of Molgula, but it has the five long decid- uous appendages observed in young Molgulm. Among the compound Ascidians, Botryllus and Botrylloides have tailed young, while in other forms there is no metamorphosis, de- velopment being direct. Order 2. Thaliacea.âOi the whole, we may regard this order, represented by Salpa (Fig. 140), and Doliolum, as comprising the more specialized forms of Tunicates. Salpa is pelagic, one species occurring in abundance off the shores of Southern New England, while the others
RMMCNP9D–. Text-fig. 54. Molgula pedunculata Herdman: A, different forms of opening of the dorsal tubercle; B, different forms of gut (clear) and left gonad (stippled). Molgula falsensis Millar (Text-fig. 55) Molgula fakensis Millar, 1955, pp. 217-9, %• 4°- Occurrence. St. 91: False Bay, S. Africa, 35 m. External appearance (Text-fig. 55 A). The six specimens range from 8 by 8 mm. up to 13 by 7 mm. All of them are covered with adhering fragments of shell and grains of sand. Test. The test is thin, flexible and transparent and has a sparse coating of very fine hairs. Body wall. Muscles which radiate fro
RMPFHCBW–. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 178 kropsdiameteren, sidder enten i nogen afstand fra hinanden eller ret tæt sammen og i så fald ofte på en lille forhøjning af oversiden. Sifonrandene er takkede og løber yderligere ud i 6 eller 4 tunger. Kutikulaens overflade er kornet og bærer ret korte, klæbrige tråde, der binder et løst lag af sand- og ler- partikler eller små skalfragmenter til kroppen, og hvormed arten er fæstnet til underlaget. Farven er brun eller grå.. Fig. 75*. Molgula complanata. Der er omkring 10 længere og 10 kortere tentakler; de største er
RMRH2Y32–. The British Tunicata; an unfinished monograph. Sea squirts; Tunicata. MOLGULA CONGHILEGA. the Ascidia- conchilega of Miiller. We are glad to find that the late Professor Sars was also of opinion that A. conchilega is a Molg-nla. Of two specimens sent to us by Professor Loven under this name, both covered with shelly fragments, and not to be distinguished from each other in external appearance, we found on dissection that one was a Molgula of this species and the other a true Ascidia. A Cynthia, too, C. glacialis, is in like manner invested with fragments of shells, and scarcely distinguishab
![. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Querschnitt durch die rechte Zwitterdrüse mit den benachbarten Organen einer Molgula occulta, ^Vi- Ä Ein Stück der Eileiterwand aus demselben Schnitt bei stärkerer Vergrösserung ^^^l. B Aus demselben Schnitt der Durchschnitt durch den Samenleiter, stcärker vergrössert, "''^l^. a = äussere Wand des Peribranchialraumes; hg = Bindegewebe; ec = ektodermales Hautepithel el = Eileiter; h = Hoden; hli = Herzhöhle hz = Herzwand, Myocard; ns = Nierensack o/t = Ovarialhöhle; ov = Ovarium; pb Stock Photo](https://c8.alamy.com/comp/MABF6T/dr-hg-bronns-klassen-und-ordnungen-des-thier-reichs-wissenschaftlich-dargestellt-in-wort-und-bild-querschnitt-durch-die-rechte-zwitterdrse-mit-den-benachbarten-organen-einer-molgula-occulta-vi-ein-stck-der-eileiterwand-aus-demselben-schnitt-bei-strkerer-vergrsserung-l-b-aus-demselben-schnitt-der-durchschnitt-durch-den-samenleiter-stcrker-vergrssert-quotl-a-=-ussere-wand-des-peribranchialraumes-hg-=-bindegewebe-ec-=-ektodermales-hautepithel-el-=-eileiter-h-=-hoden-hli-=-herzhhle-hz-=-herzwand-myocard-ns-=-nierensack-ot-=-ovarialhhle-ov-=-ovarium-pb-MABF6T.jpg ". Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Querschnitt durch die rechte Zwitterdrüse mit den benachbarten Organen einer Molgula occulta, ^Vi- Ä Ein Stück der Eileiterwand aus demselben Schnitt bei stärkerer Vergrösserung ^^^l. B Aus demselben Schnitt der Durchschnitt durch den Samenleiter, stcärker vergrössert, "''^l^. a = äussere Wand des Peribranchialraumes; hg = Bindegewebe; ec = ektodermales Hautepithel el = Eileiter; h = Hoden; hli = Herzhöhle hz = Herzwand, Myocard; ns = Nierensack o/t = Ovarialhöhle; ov = Ovarium; pb Stock Photo")
RMMABF6T–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Querschnitt durch die rechte Zwitterdrüse mit den benachbarten Organen einer Molgula occulta, ^Vi- Ä Ein Stück der Eileiterwand aus demselben Schnitt bei stärkerer Vergrösserung ^^^l. B Aus demselben Schnitt der Durchschnitt durch den Samenleiter, stcärker vergrössert, "''^l^. a = äussere Wand des Peribranchialraumes; hg = Bindegewebe; ec = ektodermales Hautepithel el = Eileiter; h = Hoden; hli = Herzhöhle hz = Herzwand, Myocard; ns = Nierensack o/t = Ovarialhöhle; ov = Ovarium; pb
RMRE09GJ–. Zoology for high schools and colleges. Zoology. 398 ZOOLOGY. of several species of Molgula, but it has the five long decid- uous appendages observed in young MolgulcB. Among the compound Ascidians, Botryllus and Botrylloides have tailed young, while in other forms there is no metamorphosis, de- velopment being direct. Order 3. Thaliacea.—Oil the whole, we may regard this order, represented by Salpa (Fig. 386°), and Doliolum, as comprising the more specialized forms of Tunicates. Salpa is pelagic, one species occurring in abundance ofE the shores of Southern New England, while the others most
![. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Kieme von Bostrkhobranchus vian- hattensis, von innen gesehen. (Nach Traustedt.) ?'/" = Infundibula; il = inneres Längs- gefäss; qg = Quergefäss 1. Ordnung. *) Traustedt selbst liielt die von ihm als Sostrichohranchiis bezeichnete Species nicht für neu. Dagegen hat Metcalf (1900), wie mir scheint, überzeugend nach- gewiesen, dass diese Darstellung nicht richtig ist, und dass Bosir. manhattensis Tr. mit Molgula manhattensis Dekay nicht identificirt werden kann, denn letztere Form ist Stock Photo](https://c8.alamy.com/comp/MABERB/dr-hg-bronns-klassen-und-ordnungen-des-thier-reichs-wissenschaftlich-dargestellt-in-wort-und-bild-kieme-von-bostrkhobranchus-vian-hattensis-von-innen-gesehen-nach-traustedt-quot-=-infundibula-il-=-inneres-lngs-gefss-qg-=-quergefss-1-ordnung-traustedt-selbst-liielt-die-von-ihm-als-sostrichohranchiis-bezeichnete-species-nicht-fr-neu-dagegen-hat-metcalf-1900-wie-mir-scheint-berzeugend-nach-gewiesen-dass-diese-darstellung-nicht-richtig-ist-und-dass-bosir-manhattensis-tr-mit-molgula-manhattensis-dekay-nicht-identificirt-werden-kann-denn-letztere-form-ist-MABERB.jpg ". Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Kieme von Bostrkhobranchus vian- hattensis, von innen gesehen. (Nach Traustedt.) ?'/" = Infundibula; il = inneres Längs- gefäss; qg = Quergefäss 1. Ordnung. *) Traustedt selbst liielt die von ihm als Sostrichohranchiis bezeichnete Species nicht für neu. Dagegen hat Metcalf (1900), wie mir scheint, überzeugend nach- gewiesen, dass diese Darstellung nicht richtig ist, und dass Bosir. manhattensis Tr. mit Molgula manhattensis Dekay nicht identificirt werden kann, denn letztere Form ist Stock Photo")
RMMABERB–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Kieme von Bostrkhobranchus vian- hattensis, von innen gesehen. (Nach Traustedt.) ?'/" = Infundibula; il = inneres Längs- gefäss; qg = Quergefäss 1. Ordnung. *) Traustedt selbst liielt die von ihm als Sostrichohranchiis bezeichnete Species nicht für neu. Dagegen hat Metcalf (1900), wie mir scheint, überzeugend nach- gewiesen, dass diese Darstellung nicht richtig ist, und dass Bosir. manhattensis Tr. mit Molgula manhattensis Dekay nicht identificirt werden kann, denn letztere Form ist
RMRR5FAJ–. [A biological survey of the waters of Woods Hole and vicinity. Marine animals; Marine plants. BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 409. Chart 191.—Molgula manhattensis.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Bureau of Fisheries; Sumner, Francis Bertody, 1874-; Osburn, Raymond Carroll, 1872-; Cole, Leon Jacob, 1877-; Davis, Bradley Moore, 1871-. Washington, Govt. Print. Off.
![. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Junges Thier einer Molgula ampulloides^ von rechts gesehen. (Nach Selys und Damas.) ^"/i- c ^ Celhi- losemantel; cl = Cloake; ec = Ektodormepithel; es = Endostyl; fb =â Flimmerbogen; fg = Flimmergrube; gb :^ Primäres Geschlechtsbläschen; /t^ = Herz; i = IngestionsöflFnung; ü = Intestinum; lg = Innere Längsgefässe; »t = Magen; mg = Mantelgefäss; n = Nierensäckchen; oe = Oesophagus; r = Eectum; st = Statolith; t = Tentakel; ts^âts^ = Die fünf Trans- versalgefässe zwischen d Stock Photo](https://c8.alamy.com/comp/MABF3D/dr-hg-bronns-klassen-und-ordnungen-des-thier-reichs-wissenschaftlich-dargestellt-in-wort-und-bild-junges-thier-einer-molgula-ampulloides-von-rechts-gesehen-nach-selys-und-damas-quoti-c-celhi-losemantel-cl-=-cloake-ec-=-ektodormepithel-es-=-endostyl-fb-=-flimmerbogen-fg-=-flimmergrube-gb-primres-geschlechtsblschen-t-=-herz-i-=-ingestionsflfnung-=-intestinum-lg-=-innere-lngsgefsse-t-=-magen-mg-=-mantelgefss-n-=-nierensckchen-oe-=-oesophagus-r-=-eectum-st-=-statolith-t-=-tentakel-tsts-=-die-fnf-trans-versalgefsse-zwischen-d-MABF3D.jpg ". Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Junges Thier einer Molgula ampulloides^ von rechts gesehen. (Nach Selys und Damas.) ^"/i- c ^ Celhi- losemantel; cl = Cloake; ec = Ektodormepithel; es = Endostyl; fb =â Flimmerbogen; fg = Flimmergrube; gb :^ Primäres Geschlechtsbläschen; /t^ = Herz; i = IngestionsöflFnung; ü = Intestinum; lg = Innere Längsgefässe; »t = Magen; mg = Mantelgefäss; n = Nierensäckchen; oe = Oesophagus; r = Eectum; st = Statolith; t = Tentakel; ts^âts^ = Die fünf Trans- versalgefässe zwischen d Stock Photo")
RMMABF3D–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Junges Thier einer Molgula ampulloides^ von rechts gesehen. (Nach Selys und Damas.) ^"/i- c ^ Celhi- losemantel; cl = Cloake; ec = Ektodormepithel; es = Endostyl; fb =â Flimmerbogen; fg = Flimmergrube; gb :^ Primäres Geschlechtsbläschen; /t^ = Herz; i = IngestionsöflFnung; ü = Intestinum; lg = Innere Längsgefässe; »t = Magen; mg = Mantelgefäss; n = Nierensäckchen; oe = Oesophagus; r = Eectum; st = Statolith; t = Tentakel; ts^âts^ = Die fünf Trans- versalgefässe zwischen d
RMRHM3C7–. The Biological bulletin. Biology; Zoology; Marine biology. Figures 14-17. Embryos of Molgula arenata stained histochemically for the mitochondrial enzymes succinic dehydrogenase and cytochrome oxidase. Figure 14. 4-cell stage embryo stained for succinic dehydrogenase. Figure 15. Embryo 6 hr after the 2-cell stage stained for succinic dehydrogenase. Figure 16. 4-cell stage embryo stained for cytochrome oxidase. Figure 17. Hatching larva stained for cytochrome oxidase. The arrow indicates the position of one arm of the muscle cell crescent. All figures are the same magnification; the bar in Fi
RMMCNP7K–. Text-fig. 53. Bathypera splendens Michaelsen (St. 181): A, spicule from test; B, dorsal tubercle. Family MOLGULIDAE Lacaze-Duthiers, 1877 Genus Molgula Forbes & Hartley, 1848 Molgula pedunculata Herdman (Text-fig. 54; PI. V, fig. 4) Molgula pedunculata Herdman, 1881, p. 234. For synonymy see van Name (1945). Occurrence. St. 27: S. Georgia, nom. St. 39: S. Georgia, 179-235111. St. 42: S. Georgia, 120-204 m. St. 45: S. Georgia, 238-270111. St. 123: S. Georgia, 230-250111. St. 140: S. Georgia, 122-136 m. St. 144: S. Georgia, 155-178 m. St. 160: Shag Rocks, 177 m. St. 190: Palmer Archi- pela
RMRDMC6D–. The Cambridge natural history. Zoology. Pig. 41. Branchial sacs of Molgulidae showing curved stigmata. A, Aseopera giganlea, Herdman ; B, Molgula pyrifoniiis, Herdman ; C, Eugyra kerguelenensis, Herd- genera are—Molgula, Forbes (Fig. 40, C), with distinct folds in the branchial sac (Fig. 41, B), and Eugyra, Aid. and Hanc, with no distinct folds, but merely broad internal longitudinal bars in the branchial sac (Fig. 41, C). In some of the Molgulidae. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appe
RMMABF3G–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . beobachtet habe, obwohl es mir da bald die eine, bald die andere Seite zu sein schien, die in der Spaltenbildung etwas vorauseilte. Bei Molgula roscovita bleibt ziemlich häufig die linke Kiemenhälfte ein wenig zurück, und Lacaze-Duthiers fand hier gelegentlich nur eine Spalte, während rechts bereits zwei vorhanden waren. Auch bei Molgula ampulloides ent- wickelt sich die Kieme auf der rechten Seite etwas rascher (S ely s und D am a s), während bei Äscidiella scahroides umge- kehrt die li
RMRMPEFW–. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 126 ANNALS OF THE SOUTH AFRICAN MUSEUM. Fig. 60. Molgula scutata. Large specimen. A-B. Right and left sides. C. Internal structure, brooding specimen. D. Internal structure. E. Detail of the gonad and gut. F. Larva.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. South African Museum. Cape Town : The Museum
RMRDMC64–. The Cambridge natural history. Zoology. ASCIDIAE SIMPLICES SPECIFIC CHARACTERS 79 of which are—Molgula oculata, Torbes, thickly covered with gravel or broken shells, and forming an ovate mass as large as a walnut; and Eugyra glutinans, MoUer, a smaller more globular body, the size of an acorn, and covered with fine sand, except at one circular area near the posterior end, where the leaden grey test shows through. Both these species are obtained by dredging in from 10 to 30 fathoms, and lie freely on the bottom. A rather rarer littoral species Molgula citrina, Hancock, found on some parts of
RMRHP5A1–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 1. Ascidian eggs. A, dona intestinalis; B, Molgula or Polycarpa; C, Ascidiella aspersa. ifc, inner follicle cell; im, inner membrane; ch, chorion or egg- membrane; ofc, outer follicle cell. The natural ascidian enzyme in sufficient concentration is prefer- able to any substitute, but it can be obtained only from species of the family Ascidiidae (i.e., the genera Ascidia, Ascidiella, Phallusia} and Ciona. To obtain it in effective concentration it is necessary to make mass cultures of some thousands of embryos. Normal de
RMRHN34E–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. DISTRIBUTION AND ANURAL DEVELOPMENT IN MOLGULA Blowhole Grid 1 Blowhole Grid 3 43. Blowhole Grid 2. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred
RMRHP1AF–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PHYSIOLOGY OF EXCRETION IN MOLGULA 311. 2 3 4 S WEIGHT OF BODY FIGURE 6. Correlation between body weight and weight of renal sac. centric layers can be observed under the higher powers of the microscope (Fig. 5). This deposition clearly occurs from the renal fluid, without the wall of the sac taking any direct part in its formation. Smaller animals have definitely smaller excretory granules, while the largest ones show three, four, or more concentric lamellae. This appears to indicate that the rings or layers are formed by d
RMRHN4MT–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGURES 14-17. Embryos of Molgula arenata stained histochemically for the mitochondrial enzymes succinic dehydrogenase and cytoclirome oxidase. FIGURE 14. 4-cell stage embryo stained for succinic dehydrogenase. FIGURE 15. Embryo 6 hr after the 2-cell stage stained for succinic dehydrogenase. FIGURE 16. 4-cell stage embryo stained for cytochrome oxidase. FIGURE 17. Hatching larva stained for cytochrome oxidase. The arrow indicates the position of one arm of the muscle cell crescent. All figures are the same magnification; the
RMRR5F90–. [A biological survey of the waters of Woods Hole and vicinity. Marine animals; Marine plants. BIOI.OGICAL SURVEY OF WOODS HOI.E AND VICINITY. 409. Chart 191.—Molgula manhattensis.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Sumner, Francis Bertody, 1874-; Osburn, Raymond C. (Raymond Carroll), 1872-1955; Cole, Leon Jacob, 1877-; Davis, Bradley M. (Bradley Moore), b. 1871; United States. Bureau of Fisheries. Washington
RMRHN362–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Figure 1. Map of the study region on the southeastern edge of Barkley Sound, British Columbia, Can- ada. Arrows indicate subtidal sites that were systematically surveyed for Molgula pacifica populations. Circles attached to the tails of the arrows give qualitative density values as follows: closed circle: abundant; open circle: absent: half-shaded circle: present in low numbers. type locality. In this paper, we describe the general char- acteristics of this species' habitat, give a quantitative analysis of distributional pat
RMRN8GDG–. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 242 its broadest diameter. It lies closely applied to the renal vesicle along its ventral edge, and in adult specimens lacks on that side not only the pericardium, but the internal muscular layer as well. The diameter of the lumen tapers off gradually at each end of the heart, but at a point near which the wave of contraction begins, the lumen widens somewhat giving a saccular appearance to each end of the heart. (See Fig. 1.) «.Ä.^.^. Fia. J Fig. 1. Diagrammatic view of the heart and suiTounding tissues in Molgula man- hatte
RMRHN534–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 106 M. B. SAFFO AND W. L. DAVIS Nephromyces-//-ee Molgula (experiments 1-5) In the laboratory, field-collected adults were rinsed of debris and ambient water, then induced to spawn into 0.22 ^m-filtered seawater (Saffo, 1978). Embryos were maintained in 0.22 ^m-filtered seawater through metamorphosis and initiation of feeding by the settled zooids (Fig. 1). California-raised M. manhattensis were grown beyond this stage of development in coarsely-filtered (filtrate with particle size ^ 1 mm) seawater collected from Bodega Bay
RMRHN356–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. DISTRIBUTION AND ANURAL DEVELOPMENT IN MOLGUL4 41 80n Site 1 Ridge Wall Bottom. Depth Figure 2. Densities of Molgulapacifica at three depth/habitat com- binations in two surge channel systems at the Blowhole she. Error bars represent one standard deviation on each side of the mean. Data analy- sis is presented in Table I. Other species of solitary ascidians were also counted in one grid (Blowhole grid 1) to determine if their densities correlated with those of Molgula pacifica. Embryology and histology Individuals of Molgula
RMRHNW8M–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. INDEX ACCUMULATION of radiocobalt in Tetra- hymena, 390. Action potential of stomatopod heart, 358. Activity, tidal cycles of, in Uca, 267. Adult sensitivity to x-rays, of Molgula, 171. Alanine, content of, in Porphyra, 363. Alga, marine, replacement of potassium by rubidium in, 249. Alga, red, amino acids of, 363. Algae, variations in chemical constituents of, during development, 81. Algae as food for Palaemonetes, 162. Alkaline phosphatase activity of echinoderm hybrid embryos, 21. ALLEN, B. M., AND M. H. DEVICK. Differ- e
RMRDN3PY–. Natural history. Geology; Zoology; Botany. -ArLta,retic(r)iscavBry-)Exp. Timica,tcb pl.II. â WAHdd.Hutlilitli.etim.p. 1 6 CorelLav eumyota^ Traustadt, 7 â13 Molgula, i-olgeoui.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. National Antarctic Expedition, 1907-1904; Fletcher, Lazarus, Sir 1854-1921; Bell, F. J. (Francis Jeffrey), 1855-1924; British Museum (Natural History). London, Printed by order of the Trustees of the
RMRHMX5T–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Figures 5 and 6. Transmission electron micrographs of sectioned day 2.5 Molgula rclorlilorniis juveniles. Yolk and glycogen were the predominant cytoplasmic feature of juvenile cells. Centrally located cells (cc) contain large quantities of yolk and glycogen. Differentiated muscle cells were not observed in M. ri-lortilrnn sections. - 3300 in Fig. 5: • 4900 in Fig. 6. mers were tested. .17. rctortiformis juveniles lack not only larval muscle cells, but also the sensory structures present in the head region of tadpole larvae
RMRHN56D–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. NEPHROMYCES IN TUNICATES 97 TABLE I Presence of Nephromyces in the renal sac of adult molgulids, 1977-1981. Number Number Species Location examined infected Bostrichobranchus pilularis Gulf Coast (Florida) and Atlantic Coast (Massachusetts) 23/23 Molgula arenata Atlantic (Massachusetts) 23/23 M. citrina Atlantic (Massachusetts) 21/21 M. complanata Atlantic (Massachusetts) 22/22 M. manhattensis Pacific (California) and Atlantic (Florida to Massachusetts) 212/212 M. occidentalis Atlantic and Gulf Coast (Florida) 30/30 RESULTS
RMRDMC6P–. The Cambridge natural history. Zoology. FlQ. 40.—Three simple Ascidians with vascular adhering processes from the test (nat. size). A, Ascididla aspersa, 0. F. Miiller; B, Ciona intestinalis, Linn. ; C, Molgula oculata, Forb. branched hair-like processes from the test (Fig. 40, C). Branchial sac longitudinally folded; stigmata more or less curved, usually arranged in spirals (Fig. 41); tentacles compound. The chief. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may
RMRHMX6P–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. DIRECT DEVELOPMENT IN MOUiL'L.l 19. Kifjures 3 and 4. Transmission electron micrographs of sectioned Molgula rclorlitorniix gastrulae showing the outer epidermal cells (ep) containing less yolk and glycogen than the large, centrally located cells (cc). X 3300 in Fig. 3; X 4900 in Fig. 4. were accompanied by changes in the overall shape of the egg. The early cleavage patterns exhibited by M. relortifor- mis embryos appeared similar to those exhibited by other ascidian embryos. The first cleavage plane bissected the narrow bel
RMRH2Y0A–. The British Tunicata; an unfinished monograph. Sea squirts; Tunicata. 54 BRITISH TUNICATA. rather stout, yellowish brown or nearly colourless, set ^ e/ *^ with short, stout fibrils to which the sand adheres. Mn a tie transparent, of a purple or lilac colour, showing the viscera through, especially the ovaries, which form white crescent-shaped double lines on each side. Ten- tacular filaments bipinnate, alternately large and small. Branch iul *ac with six deep folds on each side, the meshes spirally but irregularly convoluted.. FIG. 42.—Test of Molgula siphonata. One and a half nattiral size.
RMRHN333–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Execution Rock. Quadrat Coordinates Figure 4. Small-scale abundance patterns of Molgula pacifica at four sites. with respect to established individuals (Young, 1982; Young and Braithwaite, 1980). None of the correlation coefficients were significant (P. haustor: r = 0.005; C. production: r = -0.002; C.finmarkiensis: r = -0.244; P > 0.05 for all three). Reproduction and development Unlike many ascidians that spawn during the day fol- lowing dark adaptation, Molgula pacifica released ga- metes during periods of darkness. Al
RMRMHYEK–. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 43. Comparison of gut loop and gonads of A, Molgula falsensis; B, Molgula scutata, C, Molgula cryptica; and D, Molgula conchata.. Fig. 44. Eugyra myodes sp. n. A, B, specimen with test removed seen respectively from the right; and left C, oral tentacle; D, dorsal tubercle; E, gonad.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original w
![. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGURE 1. Inoculation of Molgula with Nephromyces before ("early": E) and after ("late": L, L') initiation of feeding. 1: tadpole larva; 2: settled, metamorphosing zooid (renal sac present, feeding organs not functional); 3: feeding zooid (5-7 days after fertilization); 4: zooid several months after fertilization; 5: sexually mature adult, rs, renal sac. Drawings not to scale.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - colo Stock Photo](https://c8.alamy.com/comp/RHN513/the-biological-bulletin-biology-zoology-biology-marine-biology-figure-1-inoculation-of-molgula-with-nephromyces-before-quotearlyquot-e-and-after-quotlatequot-l-l-initiation-of-feeding-1-tadpole-larva-2-settled-metamorphosing-zooid-renal-sac-present-feeding-organs-not-functional-3-feeding-zooid-5-7-days-after-fertilization-4-zooid-several-months-after-fertilization-5-sexually-mature-adult-rs-renal-sac-drawings-not-to-scale-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-colo-RHN513.jpg ". The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGURE 1. Inoculation of Molgula with Nephromyces before ("early": E) and after ("late": L, L') initiation of feeding. 1: tadpole larva; 2: settled, metamorphosing zooid (renal sac present, feeding organs not functional); 3: feeding zooid (5-7 days after fertilization); 4: zooid several months after fertilization; 5: sexually mature adult, rs, renal sac. Drawings not to scale.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - colo Stock Photo")
RMRHN513–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGURE 1. Inoculation of Molgula with Nephromyces before ("early": E) and after ("late": L, L') initiation of feeding. 1: tadpole larva; 2: settled, metamorphosing zooid (renal sac present, feeding organs not functional); 3: feeding zooid (5-7 days after fertilization); 4: zooid several months after fertilization; 5: sexually mature adult, rs, renal sac. Drawings not to scale.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - colo
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