582 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



14392. Sanguinolites retusus Walcott. Cotype. 



Lower Carboniferous. Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 247, pi. 20, fig. 10. 



13901. Sanguinolites rigidus (White and Whitfield). Plesiotype. 



Upper Devonian. The Gate, near Eureka, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 176, pi 16, fig. 6. 

 =Sphenotus contractus. 



14393. Sanguinolites salteri Walcott. Holotype. 



Lower Carboniferous. Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1S84, p. 248, pi. 20, fig. 12. 



13902. Sanguinolites ? sanduskyensis Meek. Plesiotype. 



Middle Devonian. Atrypa Peak, Eureka District, Nevada. 

 Walcott, Mon. VIII, U. S. Geol. Sun-., 18S4, p. 176, pi. 5, fig. 4. 



14394. Sanguinolites simplex Walcott. Holotype. 



Lower Carboniferous. Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 248, pi. 20, fig. 11. 



14395. Sanguinolites striatus Walcott. Cotype. 



Lower Carboniferous. Eureka District, Nevada. 



Walcott, Mon. VIII, V. S. Geol. Surv., 1S84, p. 249, pi. 23, fig. 7. 

 = Cypricardella striata. 



13905. Sanguinolites ventricosus (White and Whitfield). 



Plesiotype. 

 Upper Devonian. Rescue Hill, Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1SS4, p. I77,pl. 15, fig. 13. 



1869. Saxicava abrupta Conrad. Cotypes. 



Post-Pliocene. San Pedro, California. 



Conrad, Rept. Expl. and Surv. R. R. Miss. Riv. to Pacific Ocean, 

 V, 1856, p. 324, pi. 3, figs. 25, 25a. 



1115S5. Saxicava bilineata Conrad. Plesiotype. 



111612. Miocene. Jericho, New Jersey. 



Whitfield, Mon. XXIV, U. S. Geol. Surv., 1894, p. 92, pi. 16, 

 figs. 1-3. 



12300. Saxicava jurassica Whitfield. Cotypes. 



Jurassic. Redwater Valley, Black Hills, South Dakota. 



Whitfield, Rept. Geol. and Resources Black Hills Dakota, 1880, 

 p. 376, pi. 5, figs. 25-30. 



[64871. Saxidomus popofianus Dall. Holotype. 



Miocene. Popof Island, Shumagins, Alaska. 



Dall, Harriman Alaska Exped., IV, 1904, p. 115, pi. 10, fig. 4. 



