340 CARL BOVALLIUS, AMPHIPODA HYPERIIDEA. I. 2. PHRONIMID^. 



Dairella latissima. 



The pleon is a little deeper than the person, and is nearly as long as the last 

 four peraeonal segments together. 



The urus is much longer than the last pleonal segment. The first ural segment is 

 as long as, and scarcely broader than, the last coalesced segment, which is somewhat 

 broader than long. 



The uropoda (PI. XV, fig. 20. The first pair reach a little beyond the middle of 

 the outer ramus of the last pair; the peduncle does not reach to the apex of the peduncle 

 in the second pair. In other respects the uropoda are like those in the male. 



The second subfamily PHRONIMINCE. 



Diagn. Caput magnum, altum, conicum. Epimera cum segmentis perm coalita. Pedes perm quinti 

 paris instrumenta prensoria formantes. 



The head is large, deep, and conical. The epimerals are coalesced with the perasonal seg- 

 ments. The fifth pair of perceopoda form a prehensile organ. 



Syn. 1852. Phronimince, J. D. DANA. 



Phronimides, SPENCE BATE. 



Phronimince, J. I). DANA. Th. Streets 



— »On the Classification of the 



Crustacea Choristopoda or Te- 

 tradecapoda». The American 

 Journal of Science and Arts. 

 Second Series. Vol. 14, p. 315. 

 1852. United States Exploring Expe- 

 dition. Crustacea. Vol. 2, p. 

 1000, 1001 and 1442. 

 1862. Catal. Amph. Crust. Brit. Mu- 

 seum, p. 316. 

 Spence Bate and Westwood. 1868. A History of the British Sessile- 

 eyed Crustacea. Vol. 2, p. 20. 

 1877. "Contributions to the Natural 

 History of the Hawaiian and 

 Fanning Islands and Lower 

 California)). Bulletin of the 

 United States National Mu- 

 seum, 1877, p. 128. 

 1879. »Der Organismus der Phronimi- 

 den». Arb. Zool. Inst, der 

 Universitat Wien. Tom. 2, 

 p. 61 (3). 



1885. Prodromus Eaunse Mediterraneae. 

 Vol. 1, p. 423. 



1886. Dr. H. G. Bronn's Klassen uud 

 Ordnungen des Thier-Eeichs. 

 5 ter B( j. 2 te Abth., p. 488. 



C. Claus. 



J. V. Carus. 



A. Gerstaecker. 



