432 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



428. Nemodon sulcatinus (Evans and Shmnard). Plesiotypes. 

 Montana (Cret.). Yellowstone River, near Miles City, 

 Montana. 



Meek, Rept. U. S. Geol. Surv. Terr., IX, 1876, p. 82,' pi. 15, 

 figs. 6a, 6b. 



22872. Nemodon sulcatinus (Evans and Shumard)? Plesiotypes. 

 Colorado (Cret.). Upper Kanab Valley, Utah. 



Stanton, Bull. No. 106, U. S. Geol. Surv., 1893, p. 91, pi. 21, 

 fig. 5- 



1 157 1 7. Neocyclotus (Ptychocochlis) bakeri Simpson. Holotype. 

 Miocene. Bowden, St. Thomas, Jamaica, British West 

 Indies. 

 Dall, Proc. U. S. Nat. Mus., XVII, 1894, p. 449, pi. 16, figs. 1, 2. 



9873. Nerinea schottii Conrad. Cotypes. 



Fredericksburg (Eower Cret.). Near mouth of Pecos 

 River, Texas. 



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

 p. 158, pi. 14, figs. 3a, 3b. 



13411. Nerita californiensis White. Cotypes. 



Chico (Cret.). Todos Santos Bay, California. 



White, Bull. No. 22, U. S. Geol. Surv., 18S5, p. 12, pi. 5, figs. 7, 8. 



1 12662. Nerita tampaensis Dall. Holotype and paratypes. 



1 12663. Oligocene. Tampa, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. II, 1892, 

 p. 421, pi. 17, fig. 3. 



1979. Neritella nebrascensis Meek and Hayden. Cotypes. 



Jurassic. Head of Wind River, Wyoming. 



Meek and Hayden, Proc. Acad. Nat. Sci. Phila., for 1861, p. 444; 

 Pal. Upper Mo., Smithsonian Cont. to Knowl., No. 172; 

 XIV, 1864, p. 109, text figs. 



= Neritina nebrascensis. 



7876. Neritina (Neritella) bannisteri Meek. Cotypes. 



12487. Montana (Cret.). Coalville, Utah. 



Meek, Sixth Ann. Rept. U. S. Geol. Surv. Terr., 1S73, p. 499. 



7876. Neritina bannisteri (Meek). Cotypes. 



12487. Montana (Cret.). Coalville, Utah. 



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

 p. 25, pi. 12, figs. IO-IOC. 



12504. Neritina ( Velatella; baptista White. Holotype. 



Earaniie (Cret.). Black Buttes Station, Wyoming. 



White, Twelfth Ann. Rept. U. S. Geol. Surv. Terr., Pt. I, 1SS3, 

 p. 89, pi. 29, figs. 6a, 6b; Third Ann. Rept. U. S. Geol. Surv., 

 18S3, p. 458, pi. 23, figs. 16, 17. 



