RM2AGEJ2K–. Journal of experimental zoology. on species of Tubicolidae have been made by Andrews,Loeb, Nagel, and others, which will be considered in detail in alater connection. ^AnnelidesChetopodesduGolfesde Naples. 1868. Quoted fromAndrews JourMorph., vol. v,p. 287.^The Formation of Vegetable Mould through the Actions of Worms. 1881. Behavior of Tubicolous Annelids 297 My observations extended to the following named species:Hydroides dianthus, Potamilla oculifera, and Sabella microph-thalmia, chiefly the first. These were available in considerablenumbers, and collected from various shells about the d
RMPFYGMW–. Homes without hands : being a description of the habitations of animals, classed according to their principle of construction . Animals. SEEPULwS:. 416. Terebella Gonchilega. Sei'pula Gontortuplicata. Sabella Unispii-a. SabeUa Alreolaria. true architects, not inhabiting the tubes which have been con- structed by other creatures, but making them gradually, and in some instances getting together sand, stones, mud, shells, and other objects, which they use as materials for their homes. We may call the caddis grubs, which have recently been described, the tubicolous larvae of fresh water, and ve
RMRDA3B6–. Homes without hands : being a description of the habitations of animals, classed according to their principle of construction . Animals. SEEPULwS:. 416. Terebella Gonchilega. Sei'pula Gontortuplicata. Sabella Unispii-a. SabeUa Alreolaria. true architects, not inhabiting the tubes which have been con- structed by other creatures, but making them gradually, and in some instances getting together sand, stones, mud, shells, and other objects, which they use as materials for their homes. We may call the caddis grubs, which have recently been described, the tubicolous larvae of fresh water, and ve
RMRDGHP0–. Elementary text-book of zoology. 152 PLATYHELMINTHES. anastomose in front of the mouth. The brain is a large mass lying dorsally to the mouth ; it supplies nerves to various parts of the body. Ventral to the stomach is a single ovary vifith a large vitelline gland and an oviduct opening into the cloaca. The male Hydatina is much smaller in size and has no alimentary system. PHYLUM ROTIFERA. The Rotifera are an important phylum of common microscopic animals. They are marine and freshwater in habit, and they may be active, sedentary, tubicolous or ectoparasitic. They are interesting in their d
RMRPXRK0–. Alaska. Natural history -- Alaska; Scientific expeditions; Alaska. HARRIMAN ALASKA EXPEDITION WITH COOPERATION OF WASHINGTON ACADEMY OF SCIENCES ALASKA VOLUME XII ENCHYTR^IDS BY GUSTAV EISEN TUBICOLOUS ANNELIDS BY KATHARINE J. BUSH. NEW YORK DOUBLEDAY, PAGE & COMPANY 1904. 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.. Harriman Alaska Expedition (1899); Washington Academy of Sciences (Washington, D. C. ); Harriman, E
RMRN571K–. The animal creation: a popular introduction to zoology. Zoology. ANNELIDA. 9o Thied Order—Tubicolous xVnnelidans. The Tubicolous Annelidans, as their name imports, reside in tnbes, which are either composed of a dense shelly substance, or constructed by gluing together fragments of sand, small stones, and other similar materials. To the former section belong The Serpulse* (Serpulce) (Fig. 65), found on every coast, encrusting stones or shells, or any substance that has lain for any length of time at the bottom of the sea. The animal inhabiting these shells is a worm entirely destitute of lim
RMRHK40D–. The biology of marine animals. Marine animals; Physiology, Comparative. 208 THE BIOLOGY OF MARINE ANIMALS and thence to the buccal funnel. MacGinitie has also described an altern- ative mode of feeding by formation of a mucus-bag. This is produced by the aliform notopodia and extends posteriorly to a dorsal cup organ where it is rolled up. All the water which flows through the burrow must traverse this net, which filters out suspended food matter. At intervals the front margin is detached and the net is transported anteriorly to the mouth by. Fig. 5.3. Mucus-bag Feeding in a Tubicolous Polyc
RMRPXNF7–. Alaska. Natural history -- Alaska; Scientific expeditions; Alaska. TUBICOLOUS ANNELIDS OF THE TRIBES SABELLIDES AND SERPULIDES FROM THE PACIFIC OCEAN BY KATHARINE JEANNETTE BUSH, PH.D. CONTENTS Introduction 169 Species previously recorded from the Pacific 172 New genera 178 Species new to the region 179 Systematic discussion 1S3 Bibliography] 269 Index 292 INTRODUCTION Practically nothing was known of the annelids of the North Pacific coast before Johnson's valuable reports of 1897 and 1901 —the first entitled ' A Preliminary Account of the Marine Annelids of the Pacific Coast,' the other '
RMRDKFJ2–. The Cambridge natural history. Zoology. 28 HEMICHORDATA would indicate a near relationship between Cephalodiscus and Fhoronis. Phoronis is a small tubicolous animal, of gregarious habits, which has usually been regarded as related to the G-ephyrea. Its body ends in a plume of ciliated tentacles, which can be pro- truded from its tube, and the anus is on the dorsal side, not far from the mouth. In both these respects it agrees with Ceplialodiscus, but a more striking simi- larity is asserted by Masterman to exist between the latter and Actinotrocha, the larval stage of Plwronis. The prae-oral
RMRHK46M–. The biology of marine animals. Marine animals; Physiology, Comparative. RESPIRATION 143 within. Tubicolous polychaetes of the families Sabellariidae, Sabellidae and Serpulidae possess extensive branchial crowns which are essentially filter- feeding devices for extracting microscopic organisms from sea water (Chapter 5). The pinnules of the crown (Fig. 5.5) are thin-walled structures,. Fig. 4.3. Diagrammatic Representation of the Structure and Disposition of Gill Lamellae in Teleosts (a). Gill filaments on two adjacent gill arches, (b). Enlarged view of one gill filament. Large arrows indicat
RMRPWJ8F–. Allan Hancock Pacific expeditions. [Reports]. Scientific expeditions. 108 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 27. Fig. 25. Newport canyon, Station 7730, in 235 meters. The surface marks are those of tubicolous annelids, especially Pista disjuncta and Nothria pallida. The two large shallow depres- sions may have been made by large clams, Compsomyax or Yoldia. loveni, and seawhip are shown at the left end; the long tube at the right is a dead tube of Phyllochaetopterus limicolus; these three are shown in detail in the next photograph (Fig. 27). The smaller ir- regularities indicate the site
RMRDMWN7–. Text-book of zoology for junior students. Zoology. ANAETHEOPODA. 133. FiL'. 84.—Tuliicola. rt Serinila contor- iHpUcalu, sliowiii,' tlif- lintncliiiH and veniently divided into two groups, according as they secrete for themselves a protective tube {Tuhicola), or live a free life (Er- rantid); but the general organisation in these two sections is essen- tially the same. The Tubicolous Annelides or Tube-worms derive their name from the fact that they have the power of protecting themselves by means of tubes (Lat. tuba, a tube ; and colo, I inhabit). In some cases (fig. 84) the tube is composed
RMRHK940–. The biology of cilia and flagella. Cilia and ciliary motion; Flagella (Microbiology). THE FUNCTIONS OF THE PARTS OF CILIA 145 beating of such a cilium is shown in PI. XVIIb. This pattern of beat was described and figured by Gray (1922a) from obser- vations on cilia from the same source. A very similar form of beat is shown by ciUa on the branchial lobes of the tubicolous polycheate Sabellaria (Fig. 40a), and the beat of the vestibular cilia oi Paramecium appears basically the same (Fig. 40b), although the amplitude of beat may be a little larger. The slight difference in the appearance of th
RMRGG0NJ–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. < IIAKACTEIUSTK DEEP-SEA TYPES. WORMS. 53 extend from the littoral region as far as the greatest depth here recorded, one species having indeed been brought up in a Dentalium shell from a depth of 1,568 fathoms. Although so numerous, no new forms of these groups were collected either by the " Challenger" or " Blake," with the exception, perhaps, of some of the tubicolous types in deep water. Fur- thermore, these g*roups have but a slight significance as com- pared with the chsetopods of
RMRDT3RA–. An introduction to the study of zoology. Zoology. I82 AN' INTRODUCTION TO ZOOLOGY. The class Annelida are worms with segmented bodies, a highly-developed nervous system, and a vascular system. The sub-class Ch^topoda are remarkable for their. Wf^ Pig. 47. Fig. 48. Fig. 47.—A group of tubes of one of the tubicolous -worms, Sei^pula con- (ortupHcata, showing heart and gill.filaments of one worm. Fig. 48 o and b.—Shell-like tubes of Sjjirortis. appendages, called cirri or parapodia. The order Polychceta have tentacles and tree-like gills {brancMai); Polygordius, the larval form of which has bee
RMRPWM5R–. Allan Hancock Pacific expeditions. Scientific expeditions. PL. 1a ALLAN HANCOCK PACIFIC EXPEDITION VOL. 19. 1.' Emerald Cove, Catalina Island, Califurnia. Nuv. 17, 1951. In 17 fms. 33 28' 05" north latitude, 118° 31' 17" west longitude. The rubbly appearance is caused by masses of Chaetoptcrus tubes, tubicolous anemones, and other tube-dwelling animals. A two sq. ft. sample yielded at least 60 species of metazoan invertebrates, of which 28 are annelids, 3 are enteropneusts, and the others are representatives of different phyla or classes of animals. The bottom is highly productive.
RMRHR9MH–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ON THK BEHAVIOR OF TUBICOLOUS ANNELIDS. 87 On March 25, ten days after the specimens were installed, only had assumed a nearly vertical aspect. Others showed variou- phases of orientation, from ten to twenty, or thirty, or fifty dej of elevation above the bottom. < )n April i. the following is the record. Four -pecimen- with :^ill- directed more or less toward the light; two with a vertical attitude; three oriented at right angles to direction of light, and facing darkest end of tank; nine remain oriented in original po-i
RMRHR9TP–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ON THE BEHAVIOR OF TUBICOLOUS ANNELIDS. 69 form r aspects of the tubes is noteworthy. In my early paper u.i- -lunvn a figure which made this very graphic. Xo less than in tin- case of Hydroides the tubes of Protuhi show the record of erratic behavior in very striking manner. i.Cf. '09, pp. 180- [83. I Miring early life these tubes usually adlu-rr very Mruiisjy and closely to the base of support; but in maturity they ohm in< line in-.n- or less toward the vertical, though in a ratlur sinuous fir -1 lira I din-, i ion, or m
RMRCPXKK–. Elements of comparative anatomy. Anatomy, Comparative. APPENDAGES OF VERMES. 133 .,> •world on the organism. They are especially developed in the Chosto- poda, the cephalic region of which is provided with contractile pro- cesses, either at the sides or in the middle line (Fig. 55, t t'). These processes are simple, or are further differentiated by segmentation, or even distinguished by the possession of secondary processes. By adaptation to the most varied conditions of life they are converted into very various structures, and serve for all kinds of functions. In the tubicolous Chastopod
RMRCPBRP–. Elements of Comparative Anatomy. APPENDAGES OF VERMES. 133 world ou tlie organism. They are especially developed in the Chseto- poda, the cephahc region of which is provided with contractile pro- cesses, either at the sides or in the middle line (Fig. 55, t t'). These processes are simple, or are further differentiated by segmentation, or even distinguished by the possession of secondary processes. By adaptation to the most varied conditions of life they are converted into very various structures, and serve for all kinds of functions. In the tubicolous Chastopoda, where the cephalic region i
RMRCMNMY–. The elements of experimental embryology. Embryology, Experimental; Embryology. a Fig. 29 Cleavage asymmetry in Molluscs. The position of the large mesoderm cell (^d) is reversed in laeotropic and dexiotropic cleavage. (From Morgan, Experimental Embryology, Columbia University Press, igzj.) tubicolous Annelid worms, involves special problems of relative growth-rate, which are discussed by Przibram (1931 a). The most marked asymmetry known is that of Gastropod Mol- lusca, most of which manifest a marked torsion of the internal anatomy together with unequal development of many paired organs. In
RMRCPK9D–. Elements of comparative zoology. Zoology. 186 SYSTEMATIC ZOOLOGY. constant motion drawing small food particles to the mouth. As a result of this sedentary life the parapodia are often greatly reduced (fig. 39). Many of the Polychsetse are brightly colored and some are among the most beauti- ful objects in nature. In the development of many Polychsetes there occurs a larval form known as the trochophore, which bears no. Fig. 30.—A Tubicolous Polychsete (Amphitrite). At the upper end are the tentacles, and just below to the left the gills. resemblance to the adult. The body is oval or nearly s
RMRCNK4K–. Elements of comparative zoology. Zoology. 186 SYSTEMATIC ZOOLOGY. constant motion drawing small food particles to the mouth. As a result of this sedentary life the parapodia are often greatly reduced (fig. 39). Many of the Polycha3ta3 are brightly colored and some are among the most beauti- ful objects in nature. In the development of many Polychsetes there occurs a larval form known as the trochophore, which bears no. FIG. 30.—A Tubicolous Polychsete (Amphitrite). At the upper end are the tentacles, and just below to the left the gills. resemblance to the adult. The body is oval or nearly s
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