20 (19) First legs subchelate, dactyls fold- 

 ing to reflexed position when closed 

 . . .Family Laomediidae. Naushonia crangonoides 



Figure 42. — Naushonia crangonoides: A. carapace, 

 dorsal view; B, subchela of first leg. 



20 (79) First legs either chelate or approaching subchelate condition, but never with dactyls 

 folding to reflexed position when closed 



21 



21 (26) Rostrum prominent, extending beyond 



eyes 22 



21 (20) Rostrum short; flattened, pointed eyes 



fully exposed Family Calli- 



anassidae Callianassa atlantica 



Figure 43. — Callianassa atlantica: A. carapace and eyes, 

 dorsal view; B, major chela of male. 



22 (21) Rostrum hairy and nearly flat, few 

 teeth along sides, flanked on each 



side by large spine 



Family Upogebiidae, Upogebia affinis 



Figure 44. — Upogebia affinis: A, carapace, 

 dorsal view; B, chela. 



16 



