2O2 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bllll., 



second joint of flagellum twice as long as first and bearing at 

 distal end a fringe of long slender setae; eighteen to twenty suc- 

 ceeding joints similar to second one. 



Mandibles and maxillipeds with uniarticulate palps. 



First six thoracic segments subequal in length; seventh seg- 

 ment but little over half as long as preceding ones but broader 

 behind than any of them. First pair of legs with carpus nearly 

 equilaterally triangular, propodus moderately thickened, and 

 dactyl strong and tipped with a strong spine, carpus and pro- 

 podus with short setae on palmar margins. Succeeding pairs of 

 legs slender and of subequal size. 



First five segments of abdomen consolidated along dorsal 

 line but distinct laterally, subequal in length and each one twice 

 as long as sixth joint. Telson long and narrow with rounded 

 apex. Uropods with peduncle half as long as telson ; inner ramus 

 lamellar, triangular-ovate and extending as far as the telson; 

 outer or superior ramus narrowly semiovate, extending to end of 

 peduncle, somewhat triangular in shape, with acute apex. 



Color brownish, more or less mottled above, lighter beneath. 



Length 1 1 mm. ; females about one-third smaller. 



This species occurs from the surface to 19 fathoms and has 

 been taken from muddy bottoms ; in sand, mud, and stones ; at 

 low water, in sand. 



Distribution: Grand Manan; Bay of Fundy; Casco Bay, 

 Maine ; Vineyard Sound ; off Block Island ; off Watch Hill, Rhode 

 Island; Long Island Sound; Noank Harbor, Connecticut. 



The species is rare on this coast. 



CIROLANIDJE. 



Body more or less semicylindrical in form. Coxal plates well 

 defined except on the first segment. Head not produced medially. 

 Abdomen usually composed of six distinct segments. 



Eyes not very large, lateral. 



Antennae very unequal in length, the first pair being very 

 small, the second pair long, slender, and multiarticulate. 



Mandibles with cutting part long, more or less trifid; molar 

 tubercle elongate, triangular. Maxillipeds well developed with 

 margins of palp furnished with many setae but not with hooks. 



Legs ambulatory, although the first three pairs may also serve 

 for prehension. 



