TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 169 



61730. Corbula (Anisothyris ) ledaeformis Dall. Holotype. 



Pliocene. Pebas, mouth of Ambigacu River, Brazil. 

 Dall, Amer. Journ. Conch., VII, 1871, p. 92, pi. 16, figs. 14, 15. 



2168. Corbula mactriformis Meek and Hayden. Holotype and 



paratypes. 

 Uaramie (Cret.). Fort Clark, North Dakota. 



Meek and Hayden, Proc. Acad. Nat. Sci. Phila., VIII, 1856, 

 p. 117.— Meek, Rept. U. S. Geol. Surv. Terr., IX, 1876, p. 528, 

 pi. 43, figs. 7a.— White, Third Ann. Rept. U. S. Geol. Surv., 

 1883, p. 442, pi. 18, figs. 12-15. 



107813. Corbula (Aloidis) milium Dall. Holotype. 



Eocene. Thomasville, Clarke County, Alabama. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. IV, 1898, 

 p. 845, pi. 36, fig. 19. 



420. Corbula moreauensis Meek and Hayden. Holotype and 



paratype. 

 Fox Hills (Cret.). Moreau River, South Dakota. 



Meek and Hayden, Proc. Acad. Nat. Sci. Phila., VIII, 1856, 

 p. 83. 



= Nesera moreauensis. 



9899. Corbula nasuta Conrad. Plesiotypes. 



Tertiary. Western Texas. 



Conrad, Rept. U. S. Mexican Bound. Surv., Emory, I, Pt. II, 1857, 

 p. 161, pi. 19, fig. 4. 



7830. Corbula nematophora Meek. Cotypes. 



7891. Colorado (Cret.). Near Cedar City, southern Utah. 



Meek, Sixth Ann. Rept. U. S. Geol. Surv. Terr., 1872, (1873), 

 p. 496. — White, Eleventh Ann. Rept. U. S. Geol. Surv. Terr., 

 1877 (1879), p. 290, pi. 3, figs. 4a-d — Stanton, Bull. No. 106, 

 U. S. Geol. Surv., 1893, p. 124, pi. 27, figs. 3, 4. 



8662. Corbula nematophora Meek. Plesiotypes. 



Colorado ( Cret. ) . Plateau near west crossing of North Fork 

 of Virgin River, Utah. 



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

 1876, p. 188, pi. 17, figs. 7a-c. 



23061. Corbula ? persulcata Stanton. Holotype. 



Knoxville (Dower Cret.). Three miles northwest of Pas- 

 kenta, California. 



Stanton, Bull. No. 133, U. S. Geol. Surv., 1895 (Feb., 1S96), p. 61, 

 pi. 11, fig. 3. 



2 18 1. Corbula perundata Meek and Hayden. Paratypes. 



Daramie (Cret.). Mouth of Judith River, Montana. 



Meek and Hayden, Proc. Acad. Nat. Sci. Phila., VIII, 1S56, 

 p. 116.— Meek, Rept. U. S. Geol. Surv. Terr., IX, 1876, p. 

 530, pi. 40, fig. 4c. 



