116 BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



margins are smooth a^nd funiislKHl with hairs, asis the terminal abdom- 

 inal segment. The inner angle of the peduncle of the uropoda is })ro- 

 duced. The tirst ])air of legs are somewhat prehensile. All the others 

 are ambulatory. 



20. Genus CONILERA Leach. « 



First pair of antenna' with basal article of peduncle not extended 

 straight in front at right angles to remaining part of antenna. Pedun- 

 cle of the second pair of antenna^ composed of live articles. The plate 

 of the second article of the maxillipeds is furnished with hooks. 



The tirst pair of pleopods have the peduncle elongated, somewhat 

 longer than wide, hard, and furtiished on the inner side with alH)utnine 

 hooks; the inner l)ranch is rather elongated, narrow, hard, with the 

 innei- margin straight, thick, almost bare, the outer margin furnished 

 with moderately long hairs; the outer branch is shorter than the inner 

 branch, ovate, hard, furnished with a longitudinal furrow, with the pos- 

 terior margin furnished with moderately long hairs; the pleopods 

 thus form a large operculum, covering the other pleopods. The pedun- 

 cle of the second pair of pleopods is scarcely wider than long; the 

 branches are of the usual structure. 



The peduncle of the uropoda has the inner posterior angle somewhat 

 produced. 



The six segments of the al)domen are distinct. 



ANALVTICAt, KEY TO THE SI'ECIES OP THE GENUS CONILEKA. 



a. Eyes present. Firnt jiair of antenna> extend to the miildle of the fifth article of the 

 pednuole of the second pair of antenn;e. The second pair of antenn;e extend to 

 the middle of the first thoracic segment. Body fonr times lonjjer than wide. 



Conilcra cj/liiidracea (Montagn) 



o'. Eyes wanting. First {)air of antenn;c extend to the middle of the first thoracic 

 segment. The second pair of antenna* extend to the middle of the seventh 

 thoracic segment. Body five times longer than wide. . . Co)iiU'r<t stygia Packard 



CONILERA CYLINDRACEA (Montagu). 



Otilscuif filIiu(Ir((C('its Montagu, Trans. Linn. Soc. Loud., VIJ, LS()4, p. 71, \i\. vi, 



lig. S. 

 ('u)tihra montiKjui Lea(ii, Diet. Sci. Natur., XII, 1S18, ]». .'US.— Desmakest, 



Consid. Crnst., LS25, p. :i04.— Milne Edwards, Hist. Nat. Crust , III, 1840, 



p. 242. 

 Conilera ci/lindracca Bate and Westwood, Brit. Sessile-eyed Crustacea, II, 18B8, 



p. 304.— Hansen, Vidensk. Selsk. Skr. (6), V, 1890, pp. 858-o«n, pi. iv, 



figs. 5-5c; pi. V, tigs. 1-ld. — Richardson, American Naturalist, XXXIV, 



1900, p. 217; Proc. U. S. Nat. Mus., XXIII, 1901, p. 515.— Norman, Ann. 



Mag. Nat. Hist. (7), XIV, 1904, p. 438. 



«See Hansen for characters of genus, Vidensk Selsk. Skr. (6), V, 1890, pp. 358. 



