152 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 



TURRITELLA COOPERI Carpenter, 1866. 



Proc. Cal. Acad Sci., vol. 3, p. 216.— Tryon, Man., vol. 8, p. 200, pi. 61, fig. 61. 

 Monterey to San Diego, California. 



Genus TURRITELLOPSIS G. O. Sars, 1878. 



TURRITELLOPSIS ACICULA STIMPSONI Dall, 1919. 



Proc. U. S. Nat. Mns., vol. 56, No. 2295, p. 347.— Sars, Moll. Reg. Arct. 



Norv., pi. 10, fig. 14. 

 Nunivak Island, Alaska, to San Diego, California. Circumboreal. 



Genus TACHYRHYNCHUS Morch, 1868. 



TACHYRHYNCHUS EROSUS Couthouy, 1838. 



Boston Journ. Nat. Hist., vol 2, p. 103, pi. 3, fig. 1. 



Arctic Ocean, south on the west to the Kuril Islands, and on the east to 

 the Aleutian Islands and Kodiak, Alaska. Also Greenland. 



TACHYRHYNCHUS EROSUS MAJOR Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 346. 



Mouth of the Colville River, Arctic Alaska and south through the eastern 

 part of Bering Sea to the Pribilof and Unimak Islands. 



TACHYRHYNCHUS RETICULATUS Mighels, 1842. 



Boston Journ. Nat. Hist., vol. 4, p. 50, pi. 4, fig. 19. 



Arctic Ocean and eastern Bering Sea to the Aleutian Islands and southward 

 to British Columbia. Also Greenland. 



TACHYRHYNCHUS LACTEOLUS Carpenter, 1865. (Plate 6, fig. 2.) 



Proc. Acad. Nat. Sci. Phila., p. 62. 



Chignik Bay, Alaska Peninsula, east and south to Point Abreojos, Lower 

 California. 



TACHYRHYNCHUS LACTEOLUS SUBPLANATUS Carpenter, 1865. 

 Proc. Acad. Nat. Sci. Phila., p. 62. 

 Puget Sound to San Diego, California. 



? TACHYRHYNCHUS PRATOMUS Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 347. 



Seinidi Islands, Alaska, in 20 fathoms, to Lower California. 



? TACHYRHYNCHUS STEARNSII Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 347. 

 San Pedro, California. 



Family LITTORINIDAE. 

 Genus LITTORINA Ferussac, 1822. 



Section LITTORINA s. s. 



LITTORINA PALLIATA Say, 1822. 



Journ. Acad. Nat. Sci. Phila., vol. 2, p. 240; Gould, Inv. Mass., p. 261, fig. 177. 

 Atlantic. Pliocene of Nome, Alaska, (not known living on the Pacific side). 



