AMI'HIIM. I. ,\ 13 



Ill-nil shorter than the first segment; ocular Ufa broadly trianyulnr, produced 

 >>/,'n<l the eiut of the /irtlnncle of the upper nntennte. Eye moderately large, oval, dark. 



Upper antenna : First joint three times as long as the next two united, nuked. 

 l-'lu-rllinn 13-14-joiuted, the first joint as long as the next three, sparsely setose on 

 the upper Hide. Appendage 5-jointed, the first joint the longest, the third the shortest 

 fuvrantMMrnther longer than the upper ; peduncle reaching the end of the third joint 

 of the flagellum of the upper ; first joint the longest, second the shortest First 

 jfiutthopod* : Side plates narrowed and rounded below ; wrist two- thirds of the length 

 of the han. 1, which is alxmt twice us long as wide, with parallel margins, setose ; palm 

 rather oblique, convex, crenulate, defined by t spine. Second fitalkgpod* as in Orchoinene 

 hit mili* (Costa) [=0. batei, Sara]. Thinl pe-rteopotl* : Side-plates wider than the depth 

 in front, with the u-n.-il posterior !"! ; first joint al>out half as large as the side-plate, 

 deeper than wide ; hind margin convex, serrate, produced down to the middle of the 

 third joint ; this is much produced behind and downwards. The fifth, perteopmlit hare 

 t/n fi r#t joint nearly twice * deep <i* wide, and lonaer than the rent of tlie joint*, iii<-ltnlin<( 

 the dactylus, together, otherwise like the third pair ; the dactyli of all the peneopods 

 are very short. 



Th>' jirxt uropods are sube<]ual in extent to the second, exceeding the third ; the 

 peduncle is one-fourth longer than the subequal mini, all the parts very spinous on the 

 upper margins. Second pair less spinous. Peduncle in the thinl pair rather longer 

 than the outer ram us : inner ramus not nearly reaching the end of the first joint of the 

 outer, ite inner margin minutely serrate. Telxoii entire, deeply concave above, the end 

 truncate tcith two setules : it extends beyond the end of the inner mini of the third 

 uropoda. 



The diifereuce between the telson of this species and that of the female 0. huinilix 

 is only one of degree, as the truncate margin is slightly concave. 



ORCHOMKNKLLA PINOUIDES. 



Orchoinmtlla pinguid**, A. 0. Walker. 



W.Q., March to October,l902 ; ten, \\\ tin. ; length 10 mm. 



O. FRANKLINI. 

 ifii, A. 0. Walker. 



W.Q., 15 June, 1902 ; D net, nine, various sizes, length of largest 6'5 mm. 



0. CHELIPEM. (PI. 4, fig. 7.) 

 0. cMipM, A. 0. Walker, Ann. and Ma^. Nat. Hirt. XVII. (1906), p. 4M. 



W.Q., 28 Feb., 1902 ; eight, 10 fin. 



Body moderately compressed ; first and second segments subequal to the head and 

 each other, remaining mesosome segments rather longer and subequal. First four aide- 



