30 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



24638. Agnostus bidens Meek. Plesiotype. 



Upper Cambrian. Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 26, pi. 9, figs. 

 13, 13a. 



35222. Agnostus bidens Meek. Plesiotypes. 



Flathead (Mid. Cambrian). Gallatin Range, Yellowstone 

 National Park. 



Walcott, Mon. XXXII, U. S. Geol. Surv., Pt. II, 1899, p. 455, pi. 

 63, figs- 4, 4a. 



24557. Agnostus communis Hall and Whitfield. Holotype. 



Upper Cambrian. White Pine District, Nevada. 



Hall and Whitfield, Rept. U. S. Geol. Expl. 40th Par., IV, Pt. II, 

 1877, P- 22 8, pi- 1, figs. 28, 29.— Walcott, Mon. VIII, U. S. 

 Geol. Surv., 1884, p. 27. 



18327. Agnostus desideratus Walcott. Holotype. 



Dower Cambrian. Near Salem, Washington County, 

 New York. 



Walcott, Proc. U. S. Nat. Mus., XII, 1889, p. 39; Tenth Ann. 

 Rept. U. S. Geol. Surv., 1890, p. 629, pi. 80, fig. 5. 



8578. Agnostus interstrictus White. Cotypes. 



15405. Middle Cambrian. Antelope Spring, House Range, Utah. 



White, Prelim. Rep. Geogr. and Geol. Exped., West 100th Merid., 

 1874, p. 7; Rep. IT. S. Geogr. Surv. West 100th Merid., IV, 

 Pt. I, 1877, p. 38, pi. 2, figs. 5a, 5b.— Walcott, Bull. U. S. 

 Geol. Surv., No. 30, 1886, p. 149, pi. 16, figs. 6, 6a; Mon. 

 XXXII, U. S. Geol. Surv., Pt. II, 1899, p. 454, pi. 63, fig. 3. 



35221. Agnostus interstrictus White. Plesiotype. 



Flathead (Mid. Cambrian). Gallatin Range, Yellowstone 

 National Park. 



Walcott, Mon. XXXII, U. S. Geol. Surv., Pt. II, p. 454, pi. 63, 

 fig- 3a. 



24597. Agnostus maladensis Meek. Cotypes. 



Upper Cambrian. Near Malade City, Northern Utah. 



Meek, Sixth Ann. Rept. U. S. Geol. Surv. Terr., 1872 (1873), p. 

 464, and footnote. 



[Listed as A. josepha Hall?, but changed to A. maladensis Meek 

 in a footnote.] 



24639. Agnostus neon Hall and Whitfield. Holotype. 



Upper Cambrian. Eureka District, Nevada. 



Hall and Whitfield, Rept. U. S. Geol. Expl. 40th Par., IV, Pt. 

 II, 1877, p. 229, pi. 1, figs. 26, 27. 



24637. Agnostus prolongus Hall and Whitfield. Holotype. 



Upper Cambrian. Eureka, Nevada. 



Hall and Whitfield, Rept. U. S. Geol. Expl. 40th Par., IV, Pt. 

 II, 1877, p. 230, pi. 1, figs. 30, 31. 



24585. Agnostus richmondensis Walcott. Cotype. 



Middle Cambrian. Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 24, pi. 9, fig. 10. 



