lyO COxXNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



with abundant stout setae; dactyl with several serrations near 

 tip on inner margin. Second gnathopods with basal joint very 

 stout ; nierus elongated on posterior margin and terminating in a 

 rounded apex which bears long setae ; carpus with a rounded lobe 

 behind; propodus oblong oval, twice as long as wide, with 

 numerous fascicles of setae on front margin, palm long, armed 

 with setae and four spines near the poorly defined prehensile 

 angle ; dactyl with inner margin serrated. First two pairs of 

 pereiopods with basal joints greatly expanded and front and hina 

 margins strongly convex ; merus subcordate in form, with front 

 and hind margins setose ; carpus very short ; propodus tapering, 

 about twice as long as wide; dactyl straight, slender, and nearly 

 as long as the two preceding joints together. Third and fourth 

 pereiopods with basal joints stout but not greatly expanded; car- 

 pus as broad as long ; propodus somewhat curved backward ; 

 dactyl stout and strongly curved. Last pair elongated, with 

 oval basal joint provided on front and hind margins with abun- 

 dant long setae. 



Vwsi pair of uropods extending beyond the others ; peduncle 

 cylindrical and twice as long as outer ramus which is much 

 larger than inner; distal end of peduncle internally finely ser- 

 rated for a short distance; outer ramus with stout spines on 

 outer margin and a long one apically. Second pair with outer 

 ramus longer than inner but not as long as peduncle. Terminal 

 uropods with a single ramus less than one-half as long as 

 peduncle which is expanded to a rounded lobe distally and 

 medially which bears several setae apically; ramus as broad as 

 long and with several long setae at the rounded tip. Telson 

 broader than long, transversely elliptical. 



Length 6 mm. 



Distribution : in deep water ofT Vineyard Sound and Buzzards 

 Bay ; Long Island Sound. 



The species inhabits tubes constructed of grains of sand, 

 usually on bottoms of fine compact mud and sand. 



Corophium Latreille. 



»-^oropnium Latreille. 



Body comparatively stout and much depressed, with extremely 

 small coxal plates ; first pair conically produced and tipped by a 



