UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



ZOOLOGY 



Vol. 4, No. 4, pp. 227-252, Pis. 9-13 May 15, 1908 



NOTES ON TWO AMPHIPODS OF THE 



GENUS COROPHIUM FROM THE 



PACIFIC COAST. 



BY 



J. CHESTEE BEADLEY. 



In 1857 Mr. William Stimpsoii. the distinguished zoolopist of 

 the North Pacific Exploring Expedition. 1853-1856. pnlilished 

 brief descriptions, without figures, of two amphipods. Cornphium 

 spinieorne and C. sahnonis, from the Pacific Coast, the former 

 from the Bay of San Francisco, the latter from the stomach of 

 an unidentified species of salmon from Puget Sound. 



The collections at the University of California contain speci- 

 mens of Corophiuiit which, in so far as can be determined by 

 Stimpson's brief and inadequate descriptions, belong to the above 

 named species. 



This materia] consi.sts of about two dozen specimens, mostly 

 females, of Corophium spinieorne from the type locality. San 

 Francisco Bay. and about six hundred specimens of C. salmonis 

 taken from the stomachs of young salmon in Alaskan waters. It 

 is interesting that the types of this si)ecies were also o])tained 

 from the stomachs of salmon from Puget Souiid. 



In Stebbing's ('88) exhaustive review of amphipod literature 

 he makes the following comment upon the.se two species described 

 l)y Stimp.son. 



'^CoropJiitim spinieorne Stimpson, was apparently unknown 

 to Spence Bate, as in the Brit. J\Ius. Catal. he makes a new Coro- 

 phium spinieorne, which Boeck identifies with Corophium erassi- 



