238 



HOLMES 



uropods with the ramus about equal to the stout peduncle, the two seg- 

 ments of the ramus of subequal length. Telson oblong-ovate. 



Length 6 mm. 



In this species the inner plates of the maxillipeds are broader than 

 is usual in the genus, and the palp of the first maxillae has but a single 

 joint, a feature which does not accord with the definition of the genus as 

 given originally by Dana. The other characters of this species, how- 

 ever, are so much like those of the recognized members of this genus 

 that I have assigned it to Stenothce rather than institute a new genus for 

 its reception. 



Family PARAMPHITHOIDJE. 

 SYMPLEUSTES GLABER (Boeck). 



Amphithopsis glaber Boeck. 



A single specimen from St. Paul, Pribilof Islands, Alaska. 



Family IPHIMEDID^E. 

 ODIUS CARINATUS (Bate). 



A single specimen was 

 collected on the island of 

 St. Paul, one of the Prib- 

 ilof Islands, in Bering Sea. 

 The telson in this speci- 

 men is a little shorter than 

 in the one figured by Sars 

 in his Crustacea of Nor- 

 way, but otherwise the 

 Alaskan form agrees very 

 closely with Sars' descrip- 

 tion and figures. There 

 can be no doubt, I believe, 

 FIG. 123. odius carinatus. of the specific identity of 



the two forms. The Pribilof specimen is here figured, so that it may be 

 easily compared with specimens from other regions. 



Family GAMMARIDM. 

 GAMMARUS LOCUSTA Linnaeus. 

 A single specimen from Garforth Island, Muir Inlet, Glacier Bay. 



GAMMARUS PULEX (De Geer). 



Several specimens from fresh water on Popof Island and also from a 

 pond on the west side of Muir Glacier (Kincaid). 



