78 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 



LORA ARCTICA A. Adams, 1855. 

 Proc. Zool. Soc, p. 121. 

 Shumagin Islands to Chiiikoff Island, Alaska. 



LORA LAEVIGATA Dall, 1871. 



Anier. Journ. Conch., vol. 7, p. 98, pi. 16, tig. 7. 



Kotzebue and Norton Sounds and south to Chirikoff Island, Alaska. 



LORA VIOLACEA Mlghels and Adams. 1842. 



Troc. Boston Soc, Nat. Hist., vol. 1, p. 50. — G. O. Sabs, Moll. Reg. Arct. 



Norv., pi. 17, figs. 2, 3, 1878. 

 Sea Horse Islands. Arctic Ocean, to Bering Strait and Sitka, Alaska. Fossil 



on Gravina Island. Circuinboreal. 



LORA NODULOSA Krause, 1886. 



Arch. f. Naturg., vol. 51, p. 277. pi. 18, figs. 4, 12. 



St. Lawrence Bay, Bering Strait, to the Aleutians and Cook's Inlet. 



LORA ALASKENSIS Dall, 1871. 



Amer. .Journ. Conch., vol. 7, p. 98; Proc. U. S. Nat. Mus., vol. 9, pi. 4, fig. 



3, 1S8G. 

 Bering Strait to Puget Sound. 



LORA BECKII Moller, 1842. 



Index Moll. Gronl., p. 14. 



Bernard Harbor, Arctic coast, and eastward. 



LORA TREVELLIANA Turton, 1834. 



Ann. Mag. Nat. Hist., vol. 7, p. 351. — G. O. Saes, Moll. Reg. Arct. Norv., 

 pi. 16, fig. 13, 1878. 

 Arctic Ocean southward to Behm Canal, Alaska. Circumboreal. 



LORA LAWRENCIANA Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56. p. 43, pi. 15, fig. 6. 



Point Belcher, Arctic Ocean, to Pribilof Islands, Bering Sea. 



LORA EXCURVATA Carpenter, 1865. 



Proc. Acad. Nat. Sci. Phila., p. 63; Proc. U. S. Nat. Mus., vol. 56, pi. 14, 



fig. 5, 1919. 

 Bristol Bay, Bering Sea, to Puset Sound. 



Subfamily Mangiliinae. 

 Genus PLEUROTOMELLA Verrill, 1873. 



Subgenus Pleurotomella s. s. 



PLEUROTOMELLA THALASSICA Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56. p. 51, pi. 3, fig. 4. 

 Off Tillamook Bay, Oregon, in 7S6 fathoms. 



PLEUROTOMELLA HERMINEA Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56, pi. 3, fig. 6. 



Off Catalina Island, California, in 334 to 600 fathoms. 



