76 CONNECTICUT GEOL, AND NAT. HIST. SURVEY. [BulL 



smaller than outer. Maxillipeds with inner plates 'obtusely 

 rounded at tip; third joint of palp oval; fourth joint very slender 

 and curved. 



Gnathopods exactly alike in size and form, propodus oval, 

 constricted at base. Pereiopods as in Phox.ocephalus. 



Last pair of uropods dissimilar in the two sexes, compara- 

 tively simple in the female with inner ramus much shorter than 

 outer; in male much larger, with both rami well developed and 

 fringed with ciliated setae. 



Telson with narrow lobes. 



Paraphoxus spinosus Holmes. 



1903. Paraphoxus spinosus, Holmes, Amer. Naturalist, voL 

 37, p. 276. 



1905. Paraphoxus spinosus, Holmes, Bull. U. S. Bur. Fish., 

 vol. 24, p. 477. 



Head produced into triangular rostrum which projects be- 

 yond the basal joint of the first antennae. Eyes large in male, 

 much smaller in female. 



First antennae very short, only slightly longer than peduncle 

 of second antennae of male ; peduncle stout ; flagellum shorter than 

 peduncle; accessory flagellum well developed. Second antennae 

 in male with stout peduncle and very long slender flagellum con- 

 siderably more than one-half as long as body, made up of 

 elongated segments which bear calceoli. In female the flagellum 

 of the second antennae is scarcely longer than peduncle. 



First four coxal plates gradually increasing in depth poste- 

 riorly ; fourth pair much larger than the others, with hind margin 

 incised; first to third pairs rhomboidal, with a few fine setae on 

 postero-ventral angle. 



Gnathopods similar in size and shape; second joint rather 

 slender; carpus longer than propodus, stouter at distal than at 

 proximal end; propodus broader distally than proximally; palm 

 nearly transverse and marked off from posterior margin by a 

 triangular process which bears a spine ; dactyl very slender. 



First and second pereiopods subequal ; merus stout and longer 

 than carpus which is tapering and armed distally with a very long 

 curved spine ; propodus slightly longer than carpus, with three or 

 four short spines on hind margin ; dactyl very small and spine-like. 



