582 BTTLLETIN 53, UNITED STATES NATIONAL MUSEUM. 



14392. Sanguinolites retusus Walcott. Cotype. 



Lower Carboniferous. Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Sur\'., 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. Sur\-., 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. Sun-., 1S84, p. 248, pi. 20, fig. 12. 



13902. Sanguinolites ? sanduskyensis Meek. Plesiotype. 



Middle Devonian. Atrypa Peak, Eureka District, Nevada. 

 Walcott, Mon. VIII, U. vS. Geol. Surv., 1884, p. 176, pi. 5, fig. 4. 



14394. Sanguinolites simplex Walcott. Holot^'pe. 



Lower Carboniferous. Eureka District, Nevada. 



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



14395. Sanguinolites striatus Walcott. Cotj^pe. 



Lower Carboniferous. Evireka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 249, pi. 23, fig. 7. 

 = Cypricardella .striata. 



13905. Sanguinolites ventricosus (White and Whitfield). 



Plesiotype. 

 Upper Devonian. Rescue Hill, Eureka Di.strict, Nevada. 



Walcott, Mon. VIII, U. S. Geol. vSurv., 1884, p. 177.pl. 15, fig. 13. 



1869. Saxicava abrupta Conrad. Cotypes. 



Po.st-Pliocene. San Pedro, California. 



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

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



1 1 1585. Saxicava bilineata Conrad. Ple.siotyi:)e. 



111612. Miocene. Jericho, New Jersey. 



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

 figs. 1-3. 



12300. Saxicava jurassica Whitfield. Cot^'pes. 



Jura.ssic. Red water Valle>-, P>lack Hills, vSouth Dakota. 



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

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



164S71. Saxidomus popofianus Dall. Holotype. 



Miocene. Popof Island, vSlunnagins, Ala.ska. 



Dall, Ilaniinan .\laska Exi)ed., R', J904, p. 115, ])\. u>, fig. 4. 



