46 BULLETIN 53, LTNITED STATES NATIONAL MUSEUM. 



387. Ancyloceras ( Hamites) uncus Meek and Hayden. Holotj^pe. 

 Fort Pierre (Cret.). South Fork of Cheyenne River, near 

 Black Hills, South Dakota. 

 Meek and Hayden, Proc. Acad. Nat. vSci. Phila., for 1858, p. 56. 

 = Ancyloceras uncum. 



12532. Ancylus undulatus Meek. Cotypes. 



Miocene. Fossil Hill, Kaw.soh Mountains, Nevada. 



Meek, Rept. U. vS. Geol. Expl. 40th Par. IV, Pt. I, 1877, p. 186, 

 ]j1. 17, figs. 12, a-b.— White, Third Ann. Rept. U. S. Geol. 



vSurv., 1S83, p. 451, pi. 32, fig. 10. 



1 1 1658. Anguinella virginiana Conrad. Ple.siotype. 



Miocene. Jericho, New Jersey. 



Whitfield, Mon. XXIV, U. S. Geol. vSurw, 1894, p. 132, pi. 24, 

 figs. 1-5. 



107808. Anisodonta americana Dall. Holotj^pe. 



Pliocene. Monroe County, Florida. 



Dall, Trans. Wagner Free In.st. vSci. Phila., Ill, Pt. V, 1900, 

 p. 1133, pi. 36, fig. 7. 



135749. Anisodonta ( Basterotia) bowdeniana Dall. Holot^-pe. 



Oligocene ( Bowden Ijeds). Bowden, Jamaica. 



Dall Trans. Wagner Free Inst. vSci. Phila., III., Pt. V, 1900, 

 P- "33- 



1 15085. Anisodonta ( Fulcrella ) Carolina Dall. Holotype. 



Miocene. Duplin Count}', North Carolina. 



Dall, Trans. Wagner Free In.st. Sci. Phila., Ill, Pt. V, 1900, 

 p. 1 133, pi. 45, fig. 20. 



247. Anisomyon alveolus (Meek and Hayden). Holotype. 



Montana (Cret.). Yellowstone River, Montana. 



Meek, Rept. U. vS. Geol. Snrv. Terr., IX, 1876, p. 292, pi. iS, figs. 

 4a, 4b. 



See Plelcion alveolus. 



12278. Anisomyon alveolus (IVIeek and Hayden). Plesiotype. 



Fort Pierre ( Cret. j. Old Woman Fork, of Cheyenne River, 

 Wyoming. 



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

 ]). 433, pi. 12, fig. 20. 



248. Anisomyon borealis (Morton). Plesiotypes. 



lM)rt Pierre (Cret.). Great Bend of Missouri below Fort 

 Pierre, SotUh Dakota. 



Meek, Rept. V. S. Geol. vSurv. Terr., IX, 1876, p. 288, pi. 18, 

 figs. 9a-e. 



See Helcion carinattis. 



