No. VII. CRUSTACEA. 245 



by Lilljeborg as characteristic of that species. From A. 

 pumilus they differ in the shorter antennae, and in the 

 absence of a tooth on the posterior margin of the fifth post- 

 abdominal segment. 



Onesimus Edwardsii, Kroyer. PL II. fig. 3. 



Discovery Bay at 5 -J fathoms, lat. 81° 44', one speci- 

 men; Floeberg Beach, at 10 fathoms, males and females, 

 abundantly. 



Atylus carinatus, J. C. Fabricius. 



Discovery Bay, at depths of 5 J and 25 fathoms, several 

 specimens of both sexes were collected. 



Acanthozone hystrix, Owen. 



Discovery Bay, one specimen ; Franklin Pierce Bay, five 

 specimens. 



Halirages fulvocinctus, Sars. 



Discovery Bay, at 25 fathoms, one specimen ; Floeberg 

 Beach, one specimen. 



Both of the specimens collected are in an imperfect condi- 

 tion : one is, I believe, an adult female ; the other is a younger 

 animal. 



Specimens collected at Littleton Island by Dr. Hayes 

 were described by the late Dr. Stimpson as new, under the 

 name of Pherusa tricuspis. 



Gammarus locusta, Linn. 



Floeberg Beach, at depth of 10 fathoms, twenty-five 

 specimens ; crack between the floes in lat. 82° 24', three 

 specimens. 



Port Foulke (Dr. Hayes). 



Gammaracanthus loricatus, Sabine. 



Floeberg Beach, at 10 fathoms, two males and two fe- 

 males. 



