TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 685 



2164. Unio subspatulatus Meek and Hayden. Holotype. 



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



Meek and Hayden, Proc. Acad. Nat. Sci. Phila., for 1857, P- *46. — 

 Meek, Rept. U. S. Geol. Surv. Terr., IX, 1876, p. 518, pi. 41, 

 figs, ia, ib.— White, Third Ann. Rept. U. S. Geol. Surv., 1883, 

 p. 431, pi. 14, figs. 2, 3. 



20049. Unio toxonotus White. Holotype. 



Jurassic. Eight miles north of Canyon City, Colorado. 

 White, Bull. No. 29, U. S. Geol. Surv., 1886, p. 17, pi. 2, figs. 1, 2. 



492. Unio vetusta Meek. Cotypes. 



Bear River (Cret.). Bear River near mouth of Sulphur 

 Creek, Wyoming. 



Meek, Proc. Acad. Nat. Sci. Phila., for i860, p. 312; Rept. Expl. 

 Great Basin of Utah, Simpson, 1876, p. 361, pi. 5, figs. 12a, 12b. 



= Unio vetustus. 



8591. Unio vetustus Meek. Plesiotypes. 



Eocene. Wales, Sanpete County, Utah. 



White, Rept. U. S. Geogr. Surv. W. 100th Merid., IV, Pt. I, 1S76, 

 p. 206, pi. 21, figs. I2a-d. 



=Unio mendax. 



7764. Unio vetustus Meek. Plesiotypes. 



8147. Bear River (Cret.). Bear River near mouth of Sulphur 



Creek, Wyoming. 



Meek, Rept. U. S. Geol. Expl. 40th Par., IV, Pt. I, 1877, p. 164, 

 pi. 16, figs. 5a, b.— White, Third Ann. Rept. U. S. Geol. Surv., 

 1883, p. 430, pi. 7, figs. 1-4; Bull. No. 128, U. S. Geol. Surv., 

 1895, P- 35, pl- 3, ngs. 1-4. 



See Unio vetusta. 



9006. Unio washakiensis Meek. Plesiotypes. 



9007. Eocene. White River, Colorado, and Church Buttes, 



Wyoming. 



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

 p. 42, pl. 19, figs. 2a, 2b. 



112171. Urosalpinx trossulus curtus Dall. Holotype. 



Pliocene. Caloosahatchie River near Fort Thompson, 

 Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. I, 1890, p. 148, 

 pl. 7, fig. 12. 



112173. Urosalpinx trossulus subsidus Dall. Holotype. 



Pliocene. Shell Creek, De Soto County, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. I, 1890, p. 14S. 



157844. Urosyca caudata Gabb. Plesiotype. 



Lower Tejon (Eocene). Army Point near Benicia, Cali- 

 fornia. 



Stanton, Seventeenth Ann. Rept. U. S. Geol. Surv., Pt. I, 1897, 

 p. 1047, pl. 67, fig. 6. 



