PACIFIC TUNICATA OF U.S. NATIONAL MUSEUM 141 



Figure SI— Ascidia gemmata Sluiter: a, specimen from Kapingamarangl. h-d, Mantle 

 body: b, right side, Saipan specimen; c, left side of same; d, left side, a Wake specimen. 

 e-g, Ciliated grooves: e, Wake specimens;/, Saipan specimen; g, Kapingamarangl speci- 

 men, h, A papilla at crossing point between longitudinal and transverse vessels, the 

 Saipan specimen. 



siphons. Second intestinal loop deep, its axis passes through pyloric 

 end of stomach or proximal portion of intestine; turning part of loop 

 considerably swollen. 



