158 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



serrate. Second gnathopods in male very large, much elongated ; 

 basal joint narrow, elongate, gradually widening distally and 

 curved forward, lower anterior angle produced downward in a 

 rounded lobe ; ischium produced anteriorly into a prominent 

 rounded lobe as in first gnathopods ; merus with pointed process 

 at infero-posterior angle; carpus triangular, with an angular 

 posterior projection which bears a fascicle of seta; propodus 

 elongate, thickened, curved backward, posterior margin some- 

 what concave and fringed with plumose setae and bearing a blunt 

 projection near distal end of segment. In the female, first gnatho- 

 pods quite similar to those of male but with basal joint narrower. 

 The second gnathopods are very much smaller than in the male 

 and of very different form; basal joint relatively broader and 

 widening more distally ; merus broadly rounded and setose behind ; 

 carpus subtriangular, short, produced behind into a setose lobe; 

 dactyl narrowly ovate with palm slightly sinuate and provided 

 with two prehensile spines. 



First uropods with peduncle having a spine at distal end 

 which is much less than half as long as rami; terminal uropods 

 with rami very small, scarcely one-fourth as long as peduncle. 

 Telson triangular, with rounded apex. 



In the female, besides the differences in the gnathopods, the 

 second antennae are much smaller than in the male, being only 

 a little longer and stouter than the first pair; the body is also 

 broader in the middle, and the second, third, and fourth coxal 

 plates are somewhat deeper than long. 



The color varies from light olive or greenish to light crim- 

 son. Some specimens, according to Smith, taken at \^'atch Hill, 

 Rhode Island, " had a transverse dorsal band of red or orange on 

 each segment, and similar ones on the epimera, and were minutely 

 speckled with dark brown ; the antennae and legs were annulated 

 with white and light red or orange.'' 



Length 10 mm. ■ 



Distribution: Norway; Greenland; Labrador; Iceland; 

 Siberian polar seas ; Grand Manan ; Bay of Fundy ; Marble Head 

 Beach, Massachusetts ; " Prof. Smith states that ' this species was 

 dredged by Professor Verrill in 4 to 5 fathoms off Watch Hill, 

 Rhode Island, in April, 1873;'" Sea Flower Reef, Long 



