REVISION OF PILARGIDAE — PETTIBONE 



187 



76°11' W., mud, 7 fms., July 1961. The species is named for Marvin 

 Wass who collected the specimens. 



Description: Length of incomplete holotype 45 mm., width 5 mm., 

 segments 107; length of paratype (in 3 pieces) 70 mm., width 4 mm., 

 segments 192. Body large, somewhat flattened, convex dorsally, 

 flattened ventrally with mid ventral depression, tapered gradually 



Figure 16. — Sigambra bassi {a-e, from paratype from Florida, AHF 1713;/, from specimen 

 from Seahorse Key, Fia.): a, dorsal view anterior end; b, lateral view posterior end; 

 c, middle parapodium; d, notoaciculum and notosetae from same; e, neurosetae from same; 

 /, middle parapodium. 

 782-216 — 66 3 



