PACIFIC TUNICATA OF U.S. NATIONAL MUSEUM 191 



MATERIAL EXAMINED 



China: Chefoo. C. Ping, sta. 21. Three specimens (USNAI 117G3).— Hhanjiliai. 

 A. de C. Sowerby, sta. S27, early summer 1924. One specimen (USNM 11710). 



Japan: Honshu; Wakaura, Kii. B. S. Morse, coll. One specimen (USNM 

 11700).— Honshu; Kobe. Seven six'cimens (USNM 11703). — Honshu; Same, 

 Mutsu. Alhatross, lOOG. One specimen (USNM 11742). — Kyushu; Nagasaki. 

 Four specimens (USNM 11708). 



Description. — Specimens examined were 13 from Japanese waters 

 and 4 small ones from the Chinese coast. Most Japanese specimens 

 pednnculated, largest 05 mm. in body lenG:th, with a stalk 50 mm. long. 

 Chinese specimens all less than 25 mm. in length, erect, attached to 

 substratum by posterior end, witliout any stalk (figs. 82«,& ) . Descend- 

 ing branch of intestinal loop longer than half of ascending branch, 

 except in a 16 mm. long specimen from China, in which descending 

 branch is only approximately half of ascending branch. In specimen 

 from northern district of Japan (USNM 11742) body length 20 mm., 

 stalk 27 mm. long, 6 gonads arranged in three pairs (fig. 82(?) on right 

 side. Of Chinese specimens, the 16 mm. long individual has 8 matured 

 gonads on the right, 3 matured and 1 rudimentary gonad on left side. 



99. Styela atlantica (Van IN'anie) 



Figure S3 



Tethyum atlanticum Van Name, 1912, p. 5.52, fig. 31; pi. 59, figs. 92-93; pi. CO, 



fig. 96 ; pi. 68, fig. 135. 

 StycIa (Botryorchis) atlantica Van Name, 1921, p. 440, fig. 106. 

 Styela atlantica Huus, 1936, p. 1. figs. 1-8.— Van Name, 1945, p. 293, figs. 179G 



and 189-191 ; pi. 8, fig. 3.— Tokioka, 1953a, p. 264, pi. Gl, figs. 1-4 ; pi. 62, 



figs. 1-4. 



MATERIAL EXAMINED 



Japan: Honshu Island; off Manazuru Zaki N. 8° W., 4.5 mi.; Albatross sta. 

 3698. Nine specimens (USNM 11747), together with Ilerdmania momus 

 (Savigny). 



Description. — There are nine specimens in the material. Two of 

 tliem, roughly oval in shape (fig. 83a) and 15 mm. and 18 mm. in 

 length, were found among the specimens of the deep-water form of 

 Ilerdmama moinus (Savigny), collected from Japanese waters. Sur- 

 face nearly smooth, carries sand grains sparsely on basal half, some 

 fine rooty hairs issue from basal part; apertures inconspicuous, each 

 opens on a small prominence at distal end of body. External appear- 

 ance resembles closely that of (Jnemidocarpa fei't'diH molguloldes. 

 In the 15 mm. long specimen (fig. 835) , posterior end of body unusually 

 prolonged inlo a long thin peduncle, 18 mm. in length. Other seven 

 specimens were attached to surface of above-mentioned pyurid speci- 

 mens by ventral side, considerably flattened dor.soventrally (fig. 83e), 

 5 to 15 mm. in length and up to 10 mm. in height. Surface finely 

 wrinkled, holding mud, and fine rooty hairs issue along periphery of 

 basal attachment surface. I^otli apertures are 4-lobed and open on 



