KONOL. SV. VET. AKADEMIENS HANDLINDAK. 15AN1). 22. N:0 7. Hl 



ac quarti parium metacai'po pediini quinti ac sexti parium brevior. Pedes quinti paris 

 quara peraeon longiores. Pedes septiiui paris pedes sexti paris longitudine fere sequantes. 

 Pedunciilus pednm uri ultinii paris longitudine ramoruni miilto angustior. Tehoii triangulare. 



The Itead is longer than deep, not twice as deep as the first personal segment, nor as long 

 as the first four perteonal segments together. The j^erceopoda are almost robust, with 

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

 joints together. The metacai-pus of the third and fourth pairs is shorter than that of 

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

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

 narrower than the length of the rami. The tehoii is triangulär. 



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



Length. ef 5—8 mm., $ 6—9 mm. 



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



Syn. 1879. Paraphronima crassipes, CiLAUS. »Der Organismus der Phronimiden». Arb. 



Zool. Inst. der Universität Wien. 



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



1, fig. 6—9; pl. 2, fig. 10. 

 » » » C. BovALLius. 1885. »On some forgotten genera aniong the 



Araphipodous Crustacea». T?ih. t. K. Sv. 



i' ')lt)i! , Vet. Ak. Handl. Bd. 10. N:ol4, p. 11. 



» » » J. V. Carus.' 1885. Prodromus Faunfe Mediterraneje. Vol. 1, 



p. 424. 

 » » » C. BovALLius. 1887. »Systematical list of the Amphipoda 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 shoi^tness of the femora of the perasopoda and 

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

 femora and b)- the length of the rami of the last pair of uropoda from P. elypeata. 



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 pera;onal 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 (fracilis- 



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

 usually longer than the head; in the female the}^ 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 antennet^, (Pl. II, fig. 13) are similar to those of the preceding 

 species. 



The pera'07i is less convex than in Paraphronima yracilis, the segments slowly in- 

 creasing in length from the first to the seventh. 



