594 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



25661. Schroederoceras casiensis (Whitfield). Plesiotypes. 



Beekmantown (Ord.). Fort Cassiu, Vermont. 



Hyatt, Proc. Amer. Phil. Soc, XXXII, 1894, p. 473, pi. 7, figs. 4-6. 



25660. Schroederoceras eatoni (Whitfield). Plesiotypes. 



Beekmantown (Ord.). Fort Cassin, Vermont. 



Hyatt, Proc. Amer. Phil. Soc. XXXII, 1894, p. 470, pi. 6, figs. 



31-34 ; pi- 7, figs. 7, s. 



27206. Schuchertites grahami Smith. Holotype. 



Upper Coal Measures. Graham, Young County, Texas. 



Smith, Mon. XLII, U. S. Geol. Surv., 1903, p. 50, pi. 21, figs. 

 20-22. 



25555. Sciabregma rugosa Scudder. Holotype. 



Older Tertiary. Roan Mountains, western Colorado. 



Scudder, Mon. XXI, U. S. Geol. Surv., 1893, p. 147, pi. 12, fig. 8. 



25597. Sciomyza ? manca Scudder. Cotype. 



25712. Older Tertiary. Green River, Wyoming. 



Scudder, Thirteenth Ann. Rept. U. S. Geol. Surv. Terr. , 1S90, p. 

 543- pl- 4, fig- 9- 



20123. Scobinella dilleri White. Cotypes. 



Chico (Cret. ). Eighteen miles east of Redding, Cali- 

 fornia. 

 White, Bull. No. 51, U. S. Geol. Surv., 1SS9, p. 25, pl. 4, figs. 1-3. 



13966. Scoliostoma americana Walcott. Cotypes. 



Middle Devonian. Atrypa Peak, Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 18S4, p. 195, pl. 6, figs, 

 i-ie. 



13334. Scutella striatula Conrad. Plesiotype. 



Miocene. California. 



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

 VII, 1857, pl. 9, figs, ia, ib. 



25521. Scythropus ? abacus Scudder. Holotype. 



Older Tertiary. White River, western Colorado. 



Scudder, Mon. XXI, U. S. Geol. Surv., 1S93, p. 60, pl. 9, fig. 15. 



25520. Scythropus somniculosus Scudder. Holotype. 



Older Tertiary. Roan Mountains, western Colorado. 



Scudder, Mon. XXI, U. S. Geol. Surv., 1S93, p. 60, pl. 9, fig. 18. 



25517. Scythropus subterraneus Scudder. Cotypes. 



Older Tertiary. White River, Colorado and Utah. 



Scudder, Mon. XXI, U. S. Geol. Surv., 1893, p. 59, pl. 9, fig. 14. 



Sedgwickia. See also Allorisma (Sedgwickia). 



