552 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



42s. Pteria (Oxytoma ) nebrascana (Evans and Sliuniard). 



Plesiotypes. 

 Fort Pierre (Cret.). Yellowstone River, Montana. 



Meek, Rept. U. S. Geol. vSnrv. Terr., IX, 1876, p. 34, pi. 16, fig. 3b. 

 = Avicula nebrascana. 



8074. Pteria parkensis White. Cotypes. 



Montana (Cret.). South of Grand River, Middle Park, 

 Colorado. 



White, Eleventh Ann. Rept. I'. S. Geol. vSurv. Terr., 1S79, p. 279, 

 pL 3, fig. 3a. 



= Avicula parkensis. 



778S. Pteria ( Pseudopteria ) propleura Meek. Cotypes. 



7790. Colorado (Cret.). Coalville, Utah. 



White, Eleventh Ann. Rept. U. vS. Geol. Surv. Terr., 1S79, p. 28 1, 

 pi. 10, figs. 2a, 2C. 



= Gervillia proplenra. 



8025. Pteria (Oxytoma) salinensis White. Holotype. 



Mentor (Cret.). Saline County, Kansas. 



White, Proc. U. S. Nat. Mus., II, 1879, p. 296, pi. 5, figs. 1,2; 

 Twelfth Ann. Rept. U. S. Geol. Surv. Terr., 1883, p. 15, pi. 16, 



figs. 2a, b. 



= Avictila salinaensis. 



8057. Pteria ? ? stabilitatis White. Cotype. 



Cretaceous. Collin County, Texas. 



White, Twelfth Ann. Rept. U. S. Geol. vSiirv. Terr., Pt. I, 1883, 

 p. 15, pi. 17, fig. 3a. 



= Avicula? .stabilitatis. 



12251. Pteria (Pseudopteria) sublsevis Whitfield. Cotypes. 



P'ort Pierre (Cret.). Old Woman Ford, Black Hills, 

 Wyoming. 



Whitfield, Rept. Geol. and Resources Black Hills, Dakota, 1880, 

 p. 387, pi. 7, fig. 6. 



= Avicula siiblaevis. 



46293. Pterinea bellilineata Billings. Pla.stotype. 



Hudson River (Ord.). Antico.sti I.sland, Gulf of St. 

 lyawrence. 



Billings, Cat. Sil. Fo.ss. Anticosti, 1.S66, p. 15. 



13875. Pterinea flabella (Conrad). Plesiotype. 



iVIiddlc Devonian. Lone Mountain, near Ritreka, Nevada. 



Walcott, Mon. VIII, U. S. Geol. vSurv., 1884, p. 165, pi. 15, fig. 12; 

 pi. 5, fig. 6. 



46294. Pterinea mucronata Ulricli. Holotype. 



Utica (Ord.). Boone County, Kentucky. 



Ulrich, Journ. Cincinnati vSoc. Nat. Hist., II, 1S79, ]). 24, pi. 7, 

 fig. 21. 



