NORTHWEST COAST MARINE SHELLBEARTNG MOLLUSKS. 181 



MARGARITES HYPOLISPUS Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 5G, p. 367. 

 Arctic Ocean north of Bering Strait. 



MARGARITES (VAHLII var.?) TENUISCULPTUS Carpenter, 1865. 

 Proc. Acad. Nat. Sci. Phila.. p. 61. 

 Neah Bay and Puget Sound. (Plover Bay, Krause?) 



MARGARITES UMBILICALIS Broderip and Sowerby, 1829. (Plate 18, figs. 7, 8.) 



Mai. and Conch. Mag., vol. 1, p. 2G; Conch. 111., Margarita, fig. 5. 

 Arctic Coast. Circumhoreal. 



Genus MARGARITOPSIS Thiele, 1906. 



MARGARITOPSIS FRIELEI Krause, 1886. 



Arch. f. Naturg., vol. 51, heft 3, p. 263, pi. 16, figs. 2a-c; Nachr. Mai. Ges. 



1906, p. 15. 

 Bering Strait region. 



Genus GIBBULA Risso, 1826. 



GIBBULA ADRIATICA (Philippi) CANFIELDI Dall, 1871. 



Enum. Moll. Sicil., vol. 2, p. 153 ; Amer. Journ. Conch., vol. 7, p. 129 ; Proc. 



U. S. Nat. Mus., vol. 24, pi. 39, fig. 2. 

 Monterey (Dall) ; San Pedro (Johnstone) ; San Diego (Bryant). Also 



Pleistocene and Mediterranean. 



Family VITRINELLIDAE. 

 Genus VITRINELLA C. B. Adams, 1850. 



VITRINELLA WILLIAMSONI Dall, 1892. 



Proc. U. S. Nat. Mus., vol. 15, p. 202, pi. 21, figs. 2, 3. 

 San Pedro, California. 



VITRINELLA OLDROYDI Bartsch, 1907. 



Proc. U. S. Nat. Mus., vol. 32, No. 1520, p. 167, fig. 1. 



San Pedro, California, to Point Abreojos, Lower California. 



VITRINELLA ESHNAURI Bartsch, 1907. 



Proc. U. S. Nat. Mus., vol. 32, No. 1520, p. 168, fig. 2. 

 San Pedro, California. 



VITRINELLA ALASKENSIS Bartsch, 1907. 



Proc. U. S. Nat. Mus., vol. 32, p. 168, fig. 3. 

 Unalaska, Aleutian Islands. 



Section DOCOMPHALA Bartsch, 1907. 



VITRINELLA STEARNSII Bartsch, 1907. 



Proc. U. S. Nat. Mus., vol. 32, p. 169, fig. 4. 

 Monterey, California. 



VITRINELLA BERRYI Bartsch, 1907. 



Proc. U. S. Nat. Mus., vol. 32, p. 170, fig. 5. 

 Monterey to San Diego, California. 



