. Bulletin - United States National Museum. Science. PACIFIC TUNICATA OF NATIONAL MUSEUM 139. Figure 50.—Ascidia sydneiensis samea (Oka): a, 65 mm. specimen; b, right side of mantle body; c, left side of mantle body; d, one of the supporting prominences of inner longitudinal vessels; e, ciliated groove. tiidinal and transverse vessels very conspicuous, intermediate papillae absent. Roughly one plication in each interval between longitudinal vessels, 8 to 9 elongated stigmata seen in each plication. Tentacles about 40, the arrangement—large small medium small large—may be seen at some plac
. Bulletin - United States National Museum. Science. PACIFIC TUNICATA OF NATIONAL MUSEUM 139. Figure 50.—Ascidia sydneiensis samea (Oka): a, 65 mm. specimen; b, right side of mantle body; c, left side of mantle body; d, one of the supporting prominences of inner longitudinal vessels; e, ciliated groove. tiidinal and transverse vessels very conspicuous, intermediate papillae absent. Roughly one plication in each interval between longitudinal vessels, 8 to 9 elongated stigmata seen in each plication. Tentacles about 40, the arrangement—large small medium small large—may be seen at some places. Ciliated groove consists of two elongated grooves curving complicated!y. Dorsal lamina ribbed, although edges of ribs scarcely project from laminal margin. Two pontid shrimps found in branchial sac. Anterior margin of intestinal loop situated at level of middle of base of atrial siphon. Esophagus moderate in length, opens roughly at middle of distance between atrial siphon and pos- terior end of body. Stomach rather elongated with several longitudi- nal plications seen faintly through wall. Second intestinal loop very deep, its axis passes through pyloric half of stomach. Margin of anal lobes plain. Male and female gonads show configuration generally seen in usual species of Ascidia, testicular follicles spread over proxi- mal branch of second intestinal loop and cardiac half of stomach. 206-191—67^—10. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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