No. VII. CRUSTACEA. 243 



Hippolyte groenlandica, J. C. Fabricius. 



Dumbell Harbour, lat. 82 30', one female specimen. 

 Franklin Pierce Bay, 13-15 fathoms, one male specimen. 



STOMATOPODA. 



MlSIDyE. 



Mysis oculata, 0. Fabricius. 



Cape Napoleon, 25 fathoms (temperature of water 

 29 2'). 



The single specimen collected is in a very much mutilated 

 condition. 



Brought by Dr. Hayes from Port Foulke. 



ISOPODA. 



Arcturus baffini, Sabine. 



Cape Napoleon, at 25 fathoms, two specimens, male and 

 female. 



Dobbin Bay, 30 fathoms, one male and one female ; 

 Franklin Pierce Bay, 13-15 fathoms, four males and three 

 females, and many young. 



A single specimen was collected, with many of the variety 

 I have designated Feildeni, by Dr. Moss, on the ice foot a 

 mile north of H.M.S. ' Alert's ' winter-quarters. 



Var. Feildeni (Miers), PI. II. fig. 1. 



This variety is distinguished by the absence of spines on 

 the head and segments of the body. 



Floeberg beach, 82 27' N. lat., very abundant, males, 

 females, and young. 



B 2 - 



