404 



Phronimopsis markedly differs from other genera of the family in the 



structure of the pereopods, especially pair II, and the "phronimid" type 



of body in females, which is why even Claus (1879a) related it to the 



329 family Phronimidae. However, the general plan of structure undoubtedly 



indicates the affinity of Phronimopsis to the family Hyperiidae. 



Various authors have described several species of this genus which 

 were later considered synonyms; at present the genus includes just one 

 species. 



1. Phronimopsis spinifera Claus, 1879 (Fig. 175) 



Claus, 1879a: 64; Bovallius, 1889: 326; Chevreux and Page, 

 1925: 408; Shoemaker, 1945a: 242.— -sar^/ Bovallius, 1887a: 23; 1889: 

 320.— tenella Stebbing, 1888: \?>A1 .—tumida Vosseler, 1900: 9. 



Length of sexually mature specimens 3-6 mm. 



The integument is thin and transparent. The body of males is well 

 proportioned; in females the pereon is thickset but the pleon is very 

 narrow. The first two somites of the pereon are fused in the dorsal part 

 and higher than the next two somites, which in turn are higher than 

 the posterior three somites. The head in females is longer than two, in 

 males longer than three somites of the pereon. The antennal socket is 

 well developed and hence the anterior side of the head is flat while the 

 lower side is round. The interantennal lobe is absent. 



Fig. 175. Phronimopsis spinifera CXdMS {aiiQT '&o\di\\us,, 1889). 



