196 UNITED STATES NATIONAL MUSEUM BULLETIN 251 



Figure 85. — Styela coriacea (Alder & Hancock) a, 25 mm. specimen, dorsal side; b, lateral 

 side of same specimen; c, left half of mantle body, inner side; d, right half of same; 

 e,f, ciliated grooves. 



branch of first intestinal loop, and with about 8 longitudinal plica- 

 tions on each side. Anal margin cut into about 10 very distinct 

 lobules. A single gonad on each side, consisting of a long strongly 

 curved ovary and some large testicular masses located mostly around 

 posterior part of ovary on left side, but along ventral side of posterior 

 half of ovary on right side. These masses variously lobated on each 

 side; also a few small masses may be found in other parts of gonad. 



