474 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



8386. Ostrea subtrigonalis Evans and Shumard. Plesiotypes. 



Laramie (Cret.). Upper Missouri River. 



White, Third Ann. Rept. U. vS. Geol. vSurv., 1S83, j). 421, pi. 12, 

 figs. 2-5; Fourth Ann. Rept. V. vS. Geol. vSurv., 1884, p. 308, 

 pi. 61, figs. 4-7. 



2172. Ostrea subtrigonalis Evans and vShnniard? Plesiot3'pes. 



Laramie (Cret.). Month of Judith River, Montana. 



Meek, Rept. U. S. Geol. vSnrv. Terr., IX, 1876, ]). 510, pi. 40, 

 figs. la-d. 



18613. Ostrea tecticostata Gal^b. Plesiotypes. 



Cretaceous. Eufaula?, Alabama. 



White, Fourth Ann. Rept. U. S. Geol. vSurv., 1884, p. 301, pi. i, 

 figs. 3. 4- 



570. Ostrea thirsae Gabb. Plesiotype. 



Eocene. Eufaula, Alabama. 



White, Fourth Ann. Rept. U. S. Geol. vSurv., 1S84, p. 311, pi. 63, 

 figs. 4-6. 



330. Ostrea translucida Meek and Hayden. Holotype. 



Fox Hills (Cret. ). Long Lake, North Dakota. 



Meek and Hayden, Proc. Acad. Nat. Sci. Phila., for 1857, p. 147. 



See Ostrea pellucida. 



20262. Ostrea (Gryphaea) uniformis Meek. Holotype. 



Colorado (Cret. ). Pagosa Springs, Colorado. 



Meek, Rept. Expl. Exped. Santa Fe to junction of Grand and 

 Green Rivers, Macomb, 1876, p. 124, pi. i, figs. 2a-c. 



20262. Ostrea uniformis (Meek). Holotype. 



Colorado (Cret.). Pagosa vSprings, Colorado. 



vStanton, Bull. No. 106, XT. S. (tcoI. vSurv., 1893, p. 59, pi. 3, figs. 

 3. 4- 



9902. Ostrea veleniana Conrad. Holotype. 



Tertiary. Rancho Helena, below Salado, Texas. 



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

 i'*^57) P- 160, pi. 17, figs. 2a, 2b. — White, Fourth Ann. Rept. 

 V. S. Geol. Surv., 1884, p. 314, pi. 70, fig. i (as O. veberiana). 



9833. Ostrea vellicata Conrad. Holotype. 



Washita? (Lower Cret. ). Rio Grande between P"l Paso 

 and Frontera. 



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

 1857, p. 156, pi. II, figs. 2a, 2b. 



20252. Ostrea vesicularis Lamarck. Plesiotype. 



Cretaceous. Hemj^.stead Comity, Arkansas. 



Owen, Second Rept. Geol. Reconn. of Arkansas, i860, pi. 8, fig. 6. 



