PACIFIC TUNICATA OF U.S. NATIONAL MUSEUM 165 



Pyloric caecum elongated, but not so strongly curved as in <Sf. virklc; two vessels 

 issue from distal end of caecum and branch in a complicated way, also one 

 connecting anteroproximal side of caecum to intestine. (Stigmatal rows 

 12-14, longitudinal plications on the stomach 13. 



3. Symplegma Oceania Tokioka 



Pyloric caecum short and stout, a vessel connects distal end of caecum with 

 intestine. (Stigmatal rows 7-9, longitudinal plications on the stomach 

 about 10) 4. Symplegnia reptans (Oka) 



Pyloric caecum indiscernible, a vessel connects inner pyloric corner of stomach 



with intestine. (Stigmatal rows 8-11, up to 13 longitudinal ijlications on 



stomach) 5. Symplegma conneclens Tokioka 



S. reptans and S. connectens resemble each other in the structure of 

 the hirva ; larva differs distinctly from those oiS. viride and S. Oceania. 

 In the first two species, the larva has three distinct attachment proc- 

 esses and the pigment fleck of the sensory organ situated in the pos- 

 terior half of the trunk, but no elongated ampullae defined distinctly ; 

 while in S. virlde, the ventral one of three attachment processes is 

 nearly rudimentary and the pigment fleck is located near the middle 

 of the trunk. The larva of jS. Oceania has three distinct attachment 

 processes and usually 16 elongated ampullae are fairly well defined 

 on the trunk. 



81. Stolonica styelifortnis Van Name 



Figure 66 

 Stolonica styelifonnis Van Name, 1918, p. 107, figs. 61-63; pi. 29, figs. 17-19. 



MATERIAL EXAMINED 



Philippine Islands: OfE Jolo Light; 20 fathoms. Albatross sta. 5174 (the 

 type locality and station). Hundreds of specimens (USNM 11634). 



Description. — Many individuals are crowded on a 30 cm. long 

 gorgonian colony. Body roughly ellipsoidal in shape, attached to the 

 creeping stolon by posterior end, 17-25 mm. in length. Branchial 

 aperture terminal, atrial aperture situated slightly posterior to bran- 

 chial; both apertures 4-lobed. Test leathery, yellowish brown, thin 

 but tough. Surface covered sparsely with coarse sand grains, grooved 

 considerably in anterior one-third and wrinkled in posterior two-thirds 

 of body. Four purplish brown color bands run anteroposteriorly, con- 

 verging at branchial aperture, also one or two color bands extend from 

 anterodorsal part of body between both apertures to posterior end of 

 body. Five or six color bands discriminated in all, but they may be 

 rather irregular or even obscure in some specimens. A few individuals 

 harbor small bivalves {Marmollanasp.) in test. Mantle rather thick, 

 strong in consistency and yellowish brown. On inner surface on each 

 side 10-20 endocarps found. Fine atrial tentacles present. Usually 

 three strong, tendon-like fascicular appendages issue from posterior 

 end of body. 



