1898- 1902. No. 18.] CRUSTACEA. 11 



30. Pseudalibrotus Httoralis ( 



Several specimens of this common arctic form are in the collection, 

 these having been taken both at the bottom and near the surface of 

 the sea. 



Fam. Pontoporeiidse. 



31. Pontoporeia femorata, KROYER. 



Some specimens of this form were taken on two different occasions 

 in the bay in Rice Strait. 



Fam. Ampeliscidse. 



32. Byblis Gaimardi (KR0YER). 

 Taken occasionally in 4 different places. 



33. Haploops tubicola (LILLJEB.). 



Several specimens of this form are in the collection, these having 

 been taken in 5 different places. In one of these localities, the haven 

 in Rice Strait, it occurred in great abundance. 



Fam. Stegocephalidse. 



34. Stegocephalus infiatus (KROYER). 



This form occurred in no less than 11 different places, and in one 

 of them, the bay at Land's End, it was found in considerable abundance. 



Fam. Stenothoidse. 



35. Metopa Bruzelii (Goes). 



Found in great abundance on Hydroida from Rice Strait, and also 

 found in the bottom-residue of another bottle. 



36. Metopa borealis, G. 0. SARS. 



A solitary specimen of this form was found in the bottom-residue 

 of a bottle with collections taken on July 18, 1801, at the mouth of 

 Gaase Fjord, depth about 60 m. 



37. Metopa Boecki, G. 0. SARS. 



Several specimens of this form, not yet known from the arctic 

 region, were found in the same bottle as the preceding species. 



