COPEPODA FROM IFALUK ATOLL 



295 



Figure 116. — Orthopsyllus pectinicauda, new species, loc. 590, ad. 9, holotype: a, whole 

 animal, dorsal view; b, same animal, lateral view from left side. Nannomesochra arupi- 

 nirnjiJ (Brian),Harry Sta. 41, ad. 9: c, whole animal, dorsal view, (a, t, X 165; c,X 275.) 



clearly because of circular constrictions of somites (fig. 116a). Head 

 and 1st thoracic somite fused to form cephalic somite, which, without 

 rostrum, is as long as combined lengths of thoracic somites 2 to 4. 



646-471—64 20 



