298 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



22233. Gryphaea corrugata tucumcarii (Marcou.). Plesiotypes. 



Washita (Lower Cret.). Texas, and Mesa Tucumcari, 

 New Mexico. 



Hill and Vaughan, Bull. No. 151, U. S. Geol. Surv., 1898, p. 56, 

 pi. 13, figs. 4, 5; pi. 14, figs. 1, 2. 



28776. Gryphaea marcoui Hill and Vaughan. Cotypes. 



to Fredericksburg (Lower Cret. ). Near Austin and Edwards 



28778. Plateau, Texas. 



Hill and Vaughan, Bull. No. 151, U. S. Geol. Surv., 1898, p. 50, 

 pi. 2, figs. 1-15, 17-21; pi. 3, figs. 1-10; pi. 4, figs. 1-4; pi. 5, 

 figs. 1-7. 



30226. Gryphaea mucronata Gabb. Plesiotypes. 



Buda (Lower Cret.). Near Austin, Texas. 



Shattuck, Bull. No. 205, U. S. Geol. Surv., 1903, p. 21, pi. 9, 

 figs. 1-4. 



28779. Gryphaea mucronata Gabb. Plesiotypes. 



Del Rio (Lower Cret.). Near Linders Spring, Travis 

 County, Texas. 



Hill and Vaughan, Bull. No. 151, U. S. Geol. Surv., 1898, p. 63, 

 pi. 23, figs. 4-14; pi. 24, figs. 1-16; pi. 25, figs. 1-8; pi. 26, 

 figs. 4, 5; pi. 27, figs. 1-5; pi. 28, figs. 1-5; pi. 29, figs. 1-6; 

 pi. 30, figs. 1-5. 



28780. Gryphaea navia (Hall). Plesiotypes. 



28781. Washita (Lower Cret.). Near Denison, Texas, and Black 



Hills, Kansas. 



Hill and Vaughan, Bull. No. 151, U. S. Geol. Surv., 189S, p. 57, 

 pi. 13, figs. 1-3; pi. 18, figs. 4-12. 



See Exogyra forniculata. 



8775. Gryphaea newberryi Stanton. Cotypes. 



Colorado (Cret.). Southern Utah. 



Stanton, Bull. No. 106, U. S. Geol. Surv., 1893, p. 60, pi. 5, figs. 



i-5- 

 See Gryphaea pitcheri var. 



9880. Gryphaea pitcheri Morton. Plesiotypes. 



Cretaceous. Leon Springs, Texas. 



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

 1857, p. 155, pi. 7, figs. 3a-d; pi. 21, figs. 33-30. 



= Gryphaea corrugata. 



9733. Gryphaea pitcheri Morton. Plesiotypes. 



Cretaceous. Texas. 



White, Fourth Ann. Rept. U. S. Geol. Surv., 1884, p. 302, pi. 49, 

 figs. 1-3. 



8653. Gryphaea pitcheri Morton var. Plesiotypes. 



Colorado (Cret.). Southern Utah and Northern New 

 Mexico. 



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

 p. 171, pi. 17, figs. ia-f. 



= Gryphaea newberryi. 



