. Bulletin - United States National Museum. Science. PACIFIC TUNICATA OF NATIONAL MUSEUM 161. Figure 64.—Boirylloides violaceus marginal us, new subspecies: a, lobe of larger colony; b, two pairs of zooids from a system; c, small gonad on right side. are alive (fig. Q-ia). Usually a pair of yellowish pigments near distal end of atrial languet (fig, 64&), Stigmatal rows 12-14 on right, 12-1^^ on left side, posterior-most row often rudimentary. Dorsal edge of second row does not reach median line. From 8 to 9 rows exposed through a huge atrial opening. Up to 15 stigmata in each row on e
. Bulletin - United States National Museum. Science. PACIFIC TUNICATA OF NATIONAL MUSEUM 161. Figure 64.—Boirylloides violaceus marginal us, new subspecies: a, lobe of larger colony; b, two pairs of zooids from a system; c, small gonad on right side. are alive (fig. Q-ia). Usually a pair of yellowish pigments near distal end of atrial languet (fig, 64&), Stigmatal rows 12-14 on right, 12-1^^ on left side, posterior-most row often rudimentary. Dorsal edge of second row does not reach median line. From 8 to 9 rows exposed through a huge atrial opening. Up to 15 stigmata in each row on each side of body; arranged roughly (D = dorsal, V^ventral) : D 3 (1) 4 (1) 3 (1) 4V. Tentacles 8, larger and smaller ones alternate regularly. Ciliated groove a minute oval opening. Situation of ante- rior margin of intestinal loop varies from 12th transverse vessel to mid- dle of 11th stigmatal row; that of anus fhictuates fi'om 11th to 10th transverse vessel. Stomach located behind branchial sac, with 8 longitudinal plications besides typhlosolis. Some zooids from smaller colony have small gonads situated near middle of body at level of posterior margin of branchial sac, just at position of cardiac end of stomach on right side, and at level of lOtli transverse vessel on ventral left side, just along nnterior mai-gin of intestinal 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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