50 UNITED STATES NATIONAL MUSEUM BULLETIN 251 



Figure 15. — Polyclinum vasculosuvi Pizon: a, systems of zoolds on colony from Pearl 

 Harbor; b, part of margin of common cloacal aperture on colony from Saipan Island, 

 magnified; c, left side of zooid of same; d, anus of same zooid; e, right side of embryo 

 from the 11 mm. X 8 mm. colony from the Philippine Islands, X 240; /, long postabdomen 

 of a zooid of the 8 mm. X 4.5 mm. colony from Saipan Island; g, small postabdomen 

 containing only three testicular follicles from same colony. 



