140 NATURAL HISTORY OF ARCTIC AMERICA. 



Balanus balanoides Stimpson. 



Large well-developed specimens, of the low, broad form. Arctic 

 Island, September 13, 1877. This and the preceding were identified by 

 ]\rr. !<;. B. Wilson. 



There is also in the C'pllection a specimen of Hyas arancits Leach (No. 

 1420), from "Godthaab. Greenland, September 11, 1878." On its cara- 

 pax were specimens of Balanus vraiaius. 



