NORTHWEST COAST MARINE SHELL-BEARING AlOLLUSKS. 149 

 Subgenus Iphinoe H. and A. Adams, 1854. 

 IPHINOE CORONATA Gould, 18C0. (Plate 11, fig. 2.) 



Proc. Boston Soc. Nat. Hist., vol. 7, p. 324.— Tryon, Man., vol. 7. pi. 7, figs. 



53, 54. 

 Arctic Ocean and Bering Sea. 



IPHINOE KROYERI Philippi, 1849. (Plate 11, fig. 1.) 



Zeitschr. f. Mai., vol. 5, p. 175. — Tryon, Man., vol. 7, pi. 8, fig. 61. 

 Arctic and Bering Seas, eastward to the Shumagin Islands. 



IPHINOE KELSEYI Dall, 1905. 



Proc. U. S. Nat. Mus., vol. 34, No. 1610, p. 254. 



Off San Diego, Cal., and Point San Quentin, Lower California. 



Subgenus Provanna Dall, 1918. 



PROVANNA LOMANA Dall, 1918. 



Proc. Biol. Soc. Wash., vol. 31, p. 7. 



Off Point Loma, San Diego County, California, in 650 fathoms. 



Family CAECIDAE. 

 Genus CAECUM Fleming, 1817. 



CAECUM CALIFORNICUM Dall, 1885. 



Proc. U. S. Nat. Mus., vol. 8, p. 541.— Tryon, Man., vol. 8, pi. 66, fig. 65. 

 Monterey, California, to Lower California. 



CAECUM DALLI Bartsch, 1920. 



Journ. Wash. Acad. Sci., vol. 10, 1920. 

 San Pedro, California, to Lower California. 



CAECUM LICALUM Bartsch, 1920. 



Journ. Wash. Acad. Sci.. vol. 10, 1920. 

 Monterey to San Diego, California. 



CAECUM DIEGENSE Bartsch, 1920. 



Journ. Wash. Acad. Sci., vol. 10, 1920. 

 San Diego, California. 



CAECUM GRIPPI Bartsch, 1920. 



Journ. Wash. Acad. Sci.. vol. 10, 1920. 

 Off San Diego, 15 to 20 fathoms. 



Genus MICRANELLUM Bartsch, 1920. 



MICRANELLUM CREBRICINCTUM Carpenter, 1864. 



Proc. Cal. Acad. Sci., vol. 3, p. 215. — Tryon, Man., vol. 8, pi. 67, figs. 71, 83. 

 Monterey, California, to Todos Santos Bay, Lower California. 



MICRANELLUM PEDROENSE Bartsch, 1920. 



Journ. Wash. Acad. Sci., vol. 10, 1920. 

 San Pedro to San Diego, California. 



