TYPE SPECIMEN'S OF INVERTS BE ATE FOSSILS. 265 



9844. Exogyra fragosa Conrad. Holotype. 



Fredericksburg (L,ower Cret.). Between El Paso and 

 Frontera, Texas. 



Conrad, Rept. U. S. Mexican Bound. Surv., Emory, I, Pt. II, 

 1857, p. 155, pi. 8, figs. 2a, 2b. 



= Exogyra texana. 



8646. Exogyra laeviuscula Roemer. Plesiotypes. 



Colorado (Cret.). Linear Plateau, Southeast Utah. 



White, Rept. U. S. Geogr. Surv. W. 100th Merid., IV, Pt. I, 1876, 

 p. 173, pi. 17, figs. 2a-2d; Fourth Ann. Rept. U. S. Geol. Surv., 

 1884, p. 305, pi. 52, fig. 5.— Stanton, Bull. No. 106, U. S. Geol. 

 Surv., 1893, p. 64, pi. 8, figs. 5, 6. 



9883. Exogyra matheroniana d'Orbigny. Plesiotypes. 



Cretaceous. Between El Paso and Frontera, Texas. 



Conrad, Rept. U. S. Mexican Bound. Surv., Emory, I, Pt. II, 

 1857, p. 154, pi. 8, figs. ia-c. 



= Exogyra texana. 



13417. Exogyra ponderosa Roemer. Plesiotypes. 



Colorado (Cret.). East of Impracticable Ridge, Utah. 



White, Rept. U. S. Geogr. Surv. W. 100th Merid., IV, Pt. I, 1876, 

 p. 172, pi. 14, figs, ia-ic. — Stanton, Bull. No. 106, U. S. Geol. 

 Surv., 1893, p. 65, pi. 7, figs. 1, 2. 



22862. Exogyra suborbiculata (Lamarck). Plesiotypes. 



22863. Colorado (Cret.). Malachite, and Huerfano Park, Colo- 



rado. 



Stanton, Bull. No. 106, U. S. Geol. Surv., 1893, p. 62, pi. 5, fig. 6; 

 pi. 6, figs. 1, 2; pi. 8, fig. 1. 



8039. Exogyra walkeri White. Cotypes. 



Washita (Cret.). Salado, Bell County, Texas. 



White, Eleventh Ann. Rept. U. S. Geol. Surv. Terr., 1S77 (1879), 

 p. 278, pi. 1, figs, ia, ib (as E. valkeri); Fourth Ann. Rept. 

 U. S. Geol. Surv. 1884, p. 307, pi. 54, figs. 1, 2. 



8021. Exogyra winchelli White. Cotypes. 



Cretaceous. Collin County, Texas. 



White, Proc. U. S. Nat. Mus., II, 1879, p. 294, pi. 2, figs. 1, 2; 

 pi. 3, figs. 1, 2; Fourth Ann. Rept. U. S. Geol. Surv., 1884, 

 P- 3°7, pl- 52, figs. 6, 7; pi. 55, figs. 1, 2. 



25500. Exomias obdurefactus Scudder. Cotypes. 



Older Tertiary. Roan Mountains, Western Colorado. 

 Scudder, Mon. XXI, U. S. Geol. Surv., 1893, p. 40, pl. 9, fig. 4. 



129562. Falsifusus meyeri TAldrich). Plesiotype. 



Eocene. Wilcox County, Alabama. 



Grabau, Smithsonian Misc. Coll., XLIV, 1904, p. Si, pl. 17, fig. 9. 



Faphrentis. See Zaphrentis. 



