KONGL. SV. VET. AKADEMIENS HANDL1NGAK. BAND. 22. N:0 7. 



31 



ac quarti parium metacarpo pedum quinti ac sexti parium brevior. Pedes quinti paris 

 quam peraeon longiores. Pedes septimi paris pedes sexti paris longitudine fere aequantes. 

 Pedunculus pedum uri ultimi paris longitudine ramorum multo angustior. Tehon triangulare. 



The head is longer than deep, not twice as deep as the first pergonal segment, nor as long 

 as the first four perseonal segments together. The peroeopoda are almost robust, with 

 narrow femora. The femur of the first pair is scarcely longer than all the following 

 joints together. The metacarpus of the third and fourth pairs is shorter than that of 

 the fifth and sixth pairs. The fifth pair are longer than the person. The seventh pair 

 are almost as long as the sixth. The peduncle of the last pair of nropoda is much 

 narrower than the length of the rami. The tehon is triangular. 



Colour. The body is yellowish, the head dark brown. 



Length, tf 5 — 8 mm., $ 6 — 9 mm. 



Hab. The tropical region of the Atlantic. (D. M.; F. M.; S. M.; U. M.). The Mediterranean (Claus). 



Syil. 1879. Paraphronima crassipes, CLAUS. 



»Der Organismus der Phronimiden». Arb. 



Zool. Inst, der Universitat Wien. 



Vol. 2, p. 65 and 66 (7 and 8), pi. 



1, fig. 6—9; pi. 2, fig. 10. 

 C. Bovallius. 1885. »On some forgotten genera among the 



Amphipodous Crustacea". Bih. t. K. Sv. 



Vet. Ak. Handl. Bd. 10. N:o 14, p. 11. 

 J. V. Carus. 1885. Prodromns Faunae Mediterranese. Vol. 1, 



p. 424. 

 C. Bovallius. 1887. "Systematical list of the Ainphipoda Hy- 



periidea»). Bih. t. K. Sv. Vet. Ak. Handl. 



Bd. 11. N:o 16, p. 13. 



Paraphronima crassipes, has a comparatively smaller head, and more robust body 

 and legs than the preceding species; by the shortness of the femora of the peneopoda and 

 the length of the seventh pair it is to be distinguished from P. gracilis, by the narrower 

 femora and by the length of the rami of the last pair of uropoda from P. clypeata. 



The integument of the body is comparatively thick, of a yellow colour. 



The head is almost globular, the under margin semi-circular; it is about a fourth 

 deeper than the first pereional segment, and distinctly longer than deep. It equals the 

 length of the first three and half the fourth pergonal segments. 



The eyes show not a distinct division of the ocelli into two aggregations on each side, 

 the ocelli are placed closer to each others than in Paraphronima gracilis. 



The first pair of antennw (PL II, fig. 12) are robust and very long in the male, 

 usually longer than the head; in the female they are longer than half the head, the first 

 joint of the flagellum is lanceolate, the second is small tipped with two stout hairs. 



The second pair of antennce, (PI. II, fig. 13) are similar to those of the preceding 

 species. 



The perceon is less convex than in Paraphronima gracilis, the segments slowly in- 

 creasing in length from the first to the seventh. 



