U B. IV. Kunkel, 



end of hand and which forms a true chela with hand, anterior 

 margin of spur provided with a few short ciha ; hand long and 

 slender of nearly uniform width throughout, palm not marked off 

 definitely from posterior margin ; finger slender and of usual form. 



Second gnathopods with oval epimeron longer than high ; second 

 joint moderately long with anterior margin straight and provided 

 with a few slender spines ; third joint about as broad as long ; fourth 

 joint very short, somewhat cup-shaped with distal end broader than 

 proximal ; wrist weak, bearing a long shell-hke process distally and 

 posteriorly which is provided with many slender setae and into 

 which the proximal portion of the hand fits ; hand oval, with posterior 

 margin rather more convex than anterior, palm also convex, not 

 dilTerentiated from posterior margin, bearing distally 3 or 4 tooth- 

 like convexities, hand provided with fascicle of spines apically ; finger 

 long and slender, curved and pointed. 



Epimera increasing in height to fourth ; third being shortest and 

 terminating rather acutely ventrally ; pereiopods without spinning 

 glands, ending in unguiform dactyls. 



Uropods, 3 pairs, biramous, first and third ]:)airs projecting be3'ond 

 middle pair; rami subequal except in second pair where outer ramus 

 is rather shorter than inner, more or less styliform ; peduncles of 

 first and second equal respectively to rami in length ; peduncle of 

 third pair rather longer than rami. 



Telson long and slender, triangular, tapering uniformly to acute 

 apex, 3 times as long as broad, entire. 



Length 8 mm. 



Numerous specimens were present in the collection from Harring- 

 ton Sound, from Flatts Village from low water to 2 fathoms, and 

 from Castle Harbor W'here they were found in dead coral. 



The species is very widely distributed over the North Atlantic, 

 being reported from the Arctic Ocean, Norway, the British Isles, 

 the Azores, France, the Mediterranean. Sometimes it occurs in the 

 l)ranchial sac of Ascidians. 



Stenothoe marina (Bate, 1857), Boeck, 1870. 



1857. Moiitagua marina. Bate, Ann. & Mag. Nat. Hist., Ser. 2, 

 vol. 19, p. 137. 



1870. Stenothoe marina. Boeck, Forh. Videnskabs-Selsk. Chris- 

 tiania, 1870, p. 139. 

 Eyes large, compound, subtriangular. 



First antennae -/3 as long as body, peduncle short with first joint 

 rather stout, tapering somewhat ; second joint slightly shorter than 



