CHIEFLY OF THE UNITED STATES. 341 



has usually two bands, well defined inside and out. On the upper band there is 

 usually a complete row of granules, and just below this row a less well developed 

 row of granules above the lower band. In some specimens there is a disposition to 

 three rows and sometimes there are only a few small granules. The aperture is 

 usually more than one-half the length of the shell. 



LiTHASiA Wheatleti. PI. 54, fig. 25. 



Testa Isevi, subcylindracea, luteo-Yirente, vittata ; spira elevata ; suturis irregulariter impressis ; 

 aufractibus planulatis, ultimo subgrandi ; apertura subconstricta, rbomboidea, intus vittata ; labro 

 acuto, siuuoso ; columella alba et vakle sinuosa. 



Shell smooth, subcylindrical, greenish-yellow, banded ; spire elevated ; sutures 

 irregularly impressed ; whorls flattened, the last one rather large ; aperture rather 

 constricted, rhomboidal, banded within ; outer lip sharp, sinuous ; columella white 

 and very sinuous. 



Proc. Acad. Nat. Sci. 1866, p. 133. 



Edb. — Cahawba River, Alabama, E. R. Showalter, M. D. 



My cabinet and cabinets of Dr. Showalter and Mr. Wheatley. 

 Diam. -40, Length -85 inch. 



Remarks. — This fine species is allied to Doivniei (nobis) but differs in being smaller, 

 being less cylindrical and in not possessing any tubercles. In the columella Wheat- 

 leyi is more incurved and has a more decided turn at the base, which nearly amounts 

 to a fold, and the channel is more pronounced. The two specimens of Wheatleyi 

 before me have each four well defined bands. In the three specimens of Doivniei one 

 has six, another has five and the third has no bands. The spire being imperfect the 

 number of whorls is not ascertained. I dedicate this fine species to Mr. C. M. 

 Wheatley, at the request of Dr. Showalter, with great pleasure. 



LiTHASIA CTLINDRICA. PI. 54, fig. 26. 



Testa striata, cylindraeea, flaveseente, vittata vel evittata ; spira subelevata ; suturis irregulariter 

 impressis ; anfractibus constrictis, ultimo grandi ; apertura subconstricta, rbomboidea ; labro acuto, 

 sinuoso ; columella alba et valde sinuosa. 



Shell striate, cylindrical, yellowish, banded or without bands; spire somewhat 

 raised ; sutures irregularly impressed ; whorls constricted, the last one large ; aperture 

 rather constricted, rhomboidal ; outer lip sharp, sinuous ; columella white and very 

 much sinuate. 



Proc. Acad. Nat. Sci. 1866, p. 133. 



Sab. — Coosa River, Alabama, E. R. Showalter, M. D. 



My cabinet and cabinets of Dr. Showalter and C. M. Wheatley. 

 Diam. -40, Length -SO inch. 



