PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 



issued |^|i\A-^||wi l>y ^^'^ 



SMITHSONIAN INSTITUTION 



U. S. NATIONAL MUSEUM 



Vol. 88 Washington : 1940 No. 3081 



NOTES ON SOME PEDUNCULATE BAKNACLES FROM THE 



NORTH PACIFIC 



By Dora Priatjlx Henry 



Until recently it was generally assumed that the species of barnacles 

 of the genus Lepas were easy to identify, but Nilsson-Cantell (1921, 

 1928), Hiro (1937), and several others have shown that some, at least, 

 are extremely variable. Until some worker is able to examine and 

 compare specimens of the different species from all over the world, 

 some progress may be made in overcoming the difficulties encountered 

 in identifying the species of this genus if descriptions and figures of 

 the specimens of different regions are published. 



The barnacles to be described in this paper include an atypical form 

 of Lepas anatifera^ a new subspecies of L. pectinata^ L. fascicularis 

 auriviUii, Scalpellum colwnbianwn, and Mitella polytnerus. The 

 specimens of Lepas and Scalpellum were collected from several locali- 

 ties between Alaska and Oregon. I am indebted to Prof. Trevor 

 Kincaid, Department of Zoology, University of Washington, and to 

 the College of Fisheries, University of Washington, for allowing me 

 to examine specimens in their collections. Mitella polymerus was 

 collected from Puget Sound, Wash., Oregon, California, and Lower 

 California. Pedunculate barnacles from the North Pacific have pre- 

 viously been reported by Pilsbry (1907) and Broch (1922). 



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