Pegea Stock Photos and Images
RM2PMAYAA–salp colony, Pegea sp., floating tunicates form chain of individual animals San Diego, California, USA, East Pacific Ocean
RM2PMBE41–salp colony, Pegea sp., pelagic tunicates form chain of individual animals, San Diego, California, USA, East Pacific Ocean
RMATW31G–This pelagic tunicate or salp, Pegea confoederata, is part of the Salpidae family of gelatinous animals, Hawaii.
RF2HXKMP5–AZERBAIJAN - CIRCA 1995: a stamp printed in Azerbaijan shows pegea confoederata, a marine invertebrate animal, circa 1995
RF2T650MR–Salpe (Pegea confoederata) in the Mediterranean Sea near Hyeres. Dive site Giens Peninsula, Cote dAzur, France
RMMKHFH9–This pelagic tunicate or salp, Salpa aspera, is part of the Salpidae family of gelatinous animals. Hawaii.
RF2D7ABNR–MOSCOW, RUSSIA - NOVEMBER 26, 2017: A stamp printed in Azerbaijan shows Salp Chain (Pegea confoederata), Marine Animals serie, circa 1995
RMRG74TH–. Bulletin - United States National Museum. Science. Fig. 136.—Transtedtia multitentaculata, aggregated zoOid, viewed from the right side. X 2 diameters. From Apstein (1904). Two embryos are said by Apstein to be borne by the aggregated zooids in all cases; Traustedt observed but one, this very young. Traustedt describes the ganglion and eye, and Dober gives a still clearer figure which is here copied (fig. 137). The eye apparently is very similar to that of Pegea, the homologies / of whose parts I have already discussed. Beneath the ganglion are a pair of lateral disks forming the sub- neural
RM2PMBEN7–salp colony, Pegea sp., pelagic tunicates form chain of individual animals, San Diego, California, USA, East Pacific Ocean
RF2WNEH34–Salpe (Pegea confoederata) in the Mediterranean Sea near Hyeres, dive site peninsula Giens, Cote d'Azur, France
RM2A5Y2F0–This image was captured a mile off the island of Yap at night with the bottom 1000+ feet below. At just two inches in length this appears to be the la
RM2MMJ3FJ–This pelagic tunicate or salp, Salpa aspera, is part of the Salpidae family of gelatinous animals. Yap, Micronesia. Shot on a blackwater dive one mile
RMRG755X–. Bulletin - United States National Museum. Science. 116 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. half of the body, being shorter even than in Thalia longicauda. The aggregated Iasis zonaria, also, has the endostyle short and in the anterior part of the body. In all three of these species there is a considerable gap between the posterior end of the endostyle and the intestine. In Pegea confederata the endostyle is short and in the anterior part of the body, but the gap between the intestine and endostyle, especially in the solitary form, is less marked.. Please note that these images are e
RM2J2MFTM–This pelagic tunicate or salp, Salpa aspera, is part of the Salpidae family of gelatinous animals. Yap, Micronesia. Shot on a blackwater dive one mile
RM2A5Y2CB–This pelagic tunicate or salp, Salpa aspera, is part of the Salpidae family of gelatinous animals. Yap, Micronesia.
RM2PMBDGY–salp colony, Pegea sp., pelagic tunicates form chain of individual animals, San Diego, California, USA, East Pacific Ocean
RM2PMAYYK–hyperid amphipods in salp, amphipods are commensal with some species of salps such as : Pegea sp., San Diego, California, East Pacific Ocean
RF2WNEH3N–Salpe (Pegea confoederata) in the Mediterranean Sea near Hyeres, dive site peninsula Giens, Cote d'Azur, France
![. Bulletin - United States National Museum. Science. 140 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. im.. i.m. -/--m. musculature. His specimens of the aggregated zooids were clearly of the bicaudata character, as is shown by his "Fig. 25, Taf. 3" (my fig. 131, page 142), and they show considerable divergence from my specimens in oral and atrial muscles. PEGEA CONFEDERATA, subspecies BICAUDATA, solitary form. I have had two specimens which may be of this form. One is 5 mm. long. This was given me long ago by Prof. W. K. Brooks. Its source I do not know, nor do I know the authority f Stock Photo](https://c8.alamy.com/comp/RG750G/bulletin-united-states-national-museum-science-140-bulletin-100-united-states-national-museum-im-im-m-musculature-his-specimens-of-the-aggregated-zooids-were-clearly-of-the-bicaudata-character-as-is-shown-by-his-quotfig-25-taf-3quot-my-fig-131-page-142-and-they-show-considerable-divergence-from-my-specimens-in-oral-and-atrial-muscles-pegea-confederata-subspecies-bicaudata-solitary-form-i-have-had-two-specimens-which-may-be-of-this-form-one-is-5-mm-long-this-was-given-me-long-ago-by-prof-w-k-brooks-its-source-i-do-not-know-nor-do-i-know-the-authority-f-RG750G.jpg ". Bulletin - United States National Museum. Science. 140 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. im.. i.m. -/--m. musculature. His specimens of the aggregated zooids were clearly of the bicaudata character, as is shown by his "Fig. 25, Taf. 3" (my fig. 131, page 142), and they show considerable divergence from my specimens in oral and atrial muscles. PEGEA CONFEDERATA, subspecies BICAUDATA, solitary form. I have had two specimens which may be of this form. One is 5 mm. long. This was given me long ago by Prof. W. K. Brooks. Its source I do not know, nor do I know the authority f Stock Photo")
RMRG750G–. Bulletin - United States National Museum. Science. 140 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. im.. i.m. -/--m. musculature. His specimens of the aggregated zooids were clearly of the bicaudata character, as is shown by his "Fig. 25, Taf. 3" (my fig. 131, page 142), and they show considerable divergence from my specimens in oral and atrial muscles. PEGEA CONFEDERATA, subspecies BICAUDATA, solitary form. I have had two specimens which may be of this form. One is 5 mm. long. This was given me long ago by Prof. W. K. Brooks. Its source I do not know, nor do I know the authority f
RM2TA8RN8–This pelagic tunicate or salp, Salpa aspera, is part of the Salpidae family of gelatinous animals, Yap, Federated States of Micronesia.
RM2PMB70E–hyperiid amphipods in salp, Pegea sp., amphipods are commensal with some species of salps, San Diego, California, East Pacific Ocean
RF2TBD7B7–Salpe (Pegea confoederata) in the Mediterranean Sea near Hyeres. Dive site Giens Peninsula, Cote dAzur, France
RMRG6808–. Bulletin - United States National Museum. Science. Fig. 10.—Cyclosalpa pinnata, aggregated zooid, a transverse sec- tion THROUGH THE GANGLION AND THE TWO POSTERIOR LIMBS OF THE DORSAL EYE. X 150 DIAMETERS. FROM METCALF (1893, C). been studied, the pigment cells are superficial. In the solitary C. pinnata they lie deeper among the cells of the optic ridge. Goppert (1892) has shown the presence of ovoid phaeosphaeres in the rod cells of the large eyes of the aggregated forms of Cyclosalpa pinnata and Pegea confederata, also in the eye of the solitary Salpa e maxima. I have not succeeded in dem
RM2TBAA6T–This pelagic tunicate or salp, Salpa aspera, is part of the Salpidae family of gelatinous animals, Yap, Federated States of Micronesia.
RM2X5GWDT–The larval stage of a shrimp riding a luminescent jellyfish, Pelagia noctiluca, Yap, Micronesia. Shot on a blackwater dive one mile into open ocean at
RM2TBAAMM–This larval cardinalfish is just one centimeter long and was photographed in front of salps during a blackwater drift dive, in open ocean at 50 feet w
RF2T650MT–Salpe (Pegea confoederata) in the Mediterranean Sea near Hyeres. Dive site Giens Peninsula, Cote dAzur, France
![. Bulletin - United States National Museum. Science. vol. 2, pt. 2.] A TAXONOMIC STUDY OF THE SALPIDAE METCALF. 11 series of increasingly developed eyes. The character of the rod cells in the imperfect eyes of the more aberrant Salpidae seems clearly to indicate degeneration. A typical rod cell from any well-developed Salpa eye would be about as shown in figure 1. Compare this with a group of rod cells from, say, Pegea confed erata (fig. 2). In the former the glassy mod- ification of the protoplasm, which constitutes the "rod" (represented in black in the figures), is regular and is Stock Photo](https://c8.alamy.com/comp/RG76KB/bulletin-united-states-national-museum-science-vol-2-pt-2-a-taxonomic-study-of-the-salpidae-metcalf-11-series-of-increasingly-developed-eyes-the-character-of-the-rod-cells-in-the-imperfect-eyes-of-the-more-aberrant-salpidae-seems-clearly-to-indicate-degeneration-a-typical-rod-cell-from-any-well-developed-salpa-eye-would-be-about-as-shown-in-figure-1-compare-this-with-a-group-of-rod-cells-from-say-pegea-confed-erata-fig-2-in-the-former-the-glassy-mod-ification-of-the-protoplasm-which-constitutes-the-quotrodquot-represented-in-black-in-the-figures-is-regular-and-is-RG76KB.jpg ". Bulletin - United States National Museum. Science. vol. 2, pt. 2.] A TAXONOMIC STUDY OF THE SALPIDAE METCALF. 11 series of increasingly developed eyes. The character of the rod cells in the imperfect eyes of the more aberrant Salpidae seems clearly to indicate degeneration. A typical rod cell from any well-developed Salpa eye would be about as shown in figure 1. Compare this with a group of rod cells from, say, Pegea confed erata (fig. 2). In the former the glassy mod- ification of the protoplasm, which constitutes the "rod" (represented in black in the figures), is regular and is Stock Photo")
RMRG76KB–. Bulletin - United States National Museum. Science. vol. 2, pt. 2.] A TAXONOMIC STUDY OF THE SALPIDAE METCALF. 11 series of increasingly developed eyes. The character of the rod cells in the imperfect eyes of the more aberrant Salpidae seems clearly to indicate degeneration. A typical rod cell from any well-developed Salpa eye would be about as shown in figure 1. Compare this with a group of rod cells from, say, Pegea confed erata (fig. 2). In the former the glassy mod- ification of the protoplasm, which constitutes the "rod" (represented in black in the figures), is regular and is
RM2TA8T66–This larval cardinalfish is just one centimeter long and was photographed in front of salps during a blackwater drift dive, in open ocean at 50 feet w
RM2TBAABT–This larval cardinalfish of the family Apogonidae, is just one inch long and was photographed during a blackwater drift dive, in open ocean at 50 feet
RMRG751A–. Bulletin - United States National Museum. Science. Fig. 126.—Pegea confedeeata, aggregated form, somewhat oblique vertical section of the gan- glion and dorsal eyes. x 170 diameters. from Metcalf (1893, c). of the eye (posterior limbs) has its pigment ventral and its rod-cells dorsal and the optic nerve passes up over the limbs of the eye to reach its dorsally lying rod-cells. In Pegea these relations are exactly reversed in the corresponding portions of the eye {e'). The pigment is dorsal and the nerve fibers reach the rod-cells di- rectly from the ganglion. Of course, if no inversion has o
RM2TA8RTM–This larval cardinalfish of the family Apogonidae, is just one inch long and was photographed during a blackwater drift dive, in open ocean at 50 feet
RMRG7528–. Bulletin - United States National Museum. Science. IM. i.m. Fig. 124.—Pegea confederata, aggregated form, oral mus- culature OF THE RIGHT SIDE, SEEN FROM THE INSIDE. FROM SPECIMENS COLLECTED IN PHILIPPINE WATERS. The gut in the aggregated zooids is similar to that in the solitary form. It is more or less covered by the tine brown branches of the intestinal gland. In the loop of the gut lies the well-developed green- ish yellow testis. Sur- rounding the viscera in the post abdomen is a large blood sinus from which vessels or lacunae pass into the visceral mass, usually between the testis and
RMRG74Y0–. Bulletin - United States National Museum. Science. Cl.S.3 a.s.i • a.o.. Fig. 130.—Pegea confederata, subspecies bicaudata, aggre- gated zooid, dorsal view. From Strf.iff (1908). Fig. 131.— Pegea confederata, subspecies bicaudata, aggre- gated FORM, ATRIAL MUSCULATURE VIEWED FROM THE LEFT side. From Streiff (1908). cies, and species among the Salpidae are clearly demarcated and real, one would have to recognize hicaudata as a true species, but the re- semblance to confederata is so close that it is probably preferable to rank bicaudata as a subspecies of confederata. This classification empha
RMRG751T–. Bulletin - United States National Museum. Science. 136 BULLETIN 100, UNITED STATES NATIONAL MUSEUM.. Fig. 126.—Pegea confedeeata, aggregated form, somewhat oblique vertical section of the gan- glion and dorsal eyes. x 170 diameters. from Metcalf (1893, c). of the eye (posterior limbs) has its pigment ventral and its rod-cells dorsal and the optic nerve passes up over the limbs of the eye to reach its dorsally lying rod-cells. In Pegea these relations are exactly reversed in the corresponding portions of the eye {e'). The pigment is dorsal and the nerve fibers reach the rod-cells di- rectly f
![. Bulletin - United States National Museum. Science. VOL. . I'T. 2.] A JAXONOMIO STUDY OF THE SALPIDAE METCALF. 135. IM. i.m. Fig. 124.—Pegea confederata, aggregated form, oral mus- culature OF THE RIGHT SIDE, SEEN FROM THE INSIDE. FROM SPECIMENS COLLECTED IN PHILIPPINE WATERS. The gut in the aggregated zooids is similar to that in the solitary form. It is more or less covered by the tine brown branches of the intestinal gland. In the loop of the gut lies the well-developed green- ish yellow testis. Sur- rounding the viscera in the post abdomen is a large blood sinus from which vessels or lac Stock Photo](https://c8.alamy.com/comp/RG5NXB/bulletin-united-states-national-museum-science-vol-it-2-a-jaxonomio-study-of-the-salpidae-metcalf-135-im-im-fig-124pegea-confederata-aggregated-form-oral-mus-culature-of-the-right-side-seen-from-the-inside-from-specimens-collected-in-philippine-waters-the-gut-in-the-aggregated-zooids-is-similar-to-that-in-the-solitary-form-it-is-more-or-less-covered-by-the-tine-brown-branches-of-the-intestinal-gland-in-the-loop-of-the-gut-lies-the-well-developed-green-ish-yellow-testis-sur-rounding-the-viscera-in-the-post-abdomen-is-a-large-blood-sinus-from-which-vessels-or-lac-RG5NXB.jpg ". Bulletin - United States National Museum. Science. VOL. . I'T. 2.] A JAXONOMIO STUDY OF THE SALPIDAE METCALF. 135. IM. i.m. Fig. 124.—Pegea confederata, aggregated form, oral mus- culature OF THE RIGHT SIDE, SEEN FROM THE INSIDE. FROM SPECIMENS COLLECTED IN PHILIPPINE WATERS. The gut in the aggregated zooids is similar to that in the solitary form. It is more or less covered by the tine brown branches of the intestinal gland. In the loop of the gut lies the well-developed green- ish yellow testis. Sur- rounding the viscera in the post abdomen is a large blood sinus from which vessels or lac Stock Photo")
RMRG5NXB–. Bulletin - United States National Museum. Science. VOL. . I'T. 2.] A JAXONOMIO STUDY OF THE SALPIDAE METCALF. 135. IM. i.m. Fig. 124.—Pegea confederata, aggregated form, oral mus- culature OF THE RIGHT SIDE, SEEN FROM THE INSIDE. FROM SPECIMENS COLLECTED IN PHILIPPINE WATERS. The gut in the aggregated zooids is similar to that in the solitary form. It is more or less covered by the tine brown branches of the intestinal gland. In the loop of the gut lies the well-developed green- ish yellow testis. Sur- rounding the viscera in the post abdomen is a large blood sinus from which vessels or lac
RMRG5P09–. Bulletin - United States National Museum. Science. Fig. 121.—Pegea confederata, embryo, atrial musculature in ventral view. The atrial siphon was cut open along the dorsal mid line and the flaps laid out laterally. x 150 diameters. body muscle IV. These basal atrial muscles of the dorsal surface are not represented in figures 121 and 122. Across the ventral surface of the base of the siphon there is a well-developed muscle- band (figs. 119, B, 121, 122), a small branch from which on each side. Please note that these images are extracted from scanned page images that may have been digitally e
RMRG5P1K–. Bulletin - United States National Museum. Science. A a.o.. B Fig. 119.—Pegea confederata, solitary form: A, dorsal view; B, view from the right side. X 2 diameters. From specimens collected in Phillppine waters and others from the Alaska coast. (Drawn by IIoyt S. Hopkins.) dorsal line and spread out flat, the drawing showing an exterior (ventral) view of the preparation. Figure 122 shows a similar preparation of the cloacal siphon of an adult, in similar view. Figure 119, A and B, show additional muscles on the dorsal side at the base of the atrial siphon. These do not appear in figures 121
RMRG5NXR–. Bulletin - United States National Museum. Science. em. A. B Fig. 123.—Pegea confederata, aggregated zooid: A, dorsal view; B, view krom right side. X DIAMETERS. FROM SPECIMENS COLLECTED IN PHILIPPINE WATERS. (1>RAWN BY HOTT S. HOP- KINS.) though it is, in Pegea, actually distinct from the latter. It runs toward, but does not reach, the mid-ventral line of the base of the atrial siphon, its ventral end turning slightly forward toward the gut, suggesting the origin of the visceral muscle (v) in other forms (see fig. 3, pi. 1, Cyclosalpa phi nata, and fig. 13, pi. 4, Cyclosalpafloridana).
RMRMT9CK–. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. 80 vare e far giungere sino a noi esemplari viventi di Ferussacia (Pegea) paulucciana Pollonera. Assai interessante, infine, sarà l'esame anato- mico degli esemplari di Ferussacia viventi nel nizzardo ai fini di accer- tare la loro vera identità. Il tratto genitale di Ferussacia [Pegea) pau- lucciana Pollonera studiato su numerosi esemplari non si discosta molto. MR 1 mm Fig. 9 - Ferussacia {Pegea) paulucciana Pollonera, apparato genitale di un individuo raccolto nei pressi del Paese (Pianosa, 20-7-69). G gonade ermaf
RMRMT9BH–. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. 82 F. GIUSTI Al microscopio elettronico scanning ho infine esaminato la super- ficie esterna ed interna della conchiglia di Ferussacia (Pegea) pauluc- ciana Pollonera. La superficie esterna appare uniformemente levigata e pro^^dsta di lievissime e lunghe rilevature. La superficie interna che, a piccolo ingrandimento, appariva totalmente liscia, osservata a più MR. 1 mm Fig. 10 - Ferussacia (Pegea) paulucciana Pollonera, spaccato del complesso peniale di un individuo raccolto nei pressi del Paese (Pianosa, 20-7-69). CD
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