IItr.su WATER AND LAND SHELLS. 85 



Mblania SPDRCA. PI. IX. Fig. 31. 



Testa hevi, pyramidatd, suberassd, lenebrosofusca : spird subelevatd; suturis subimprefsis ; anfractibus 

 oetonis, pltmulaiis; aperturd parvd, rhomboided, ml Imsim angvlatd, intus albidd. 



Shell smooth, pyramidal, somewhat thick, dark-brown ; spire somewhat elevated; sutures slightly impressed : 

 whorls eight, flattened; aperture small, rhomboidal, angular at the base, within white. 



1 lab. Alabama. Major Le Contc. 



Cabinet of Major Le Conte. 

 Diam. .43, Length .98 of an inch. 



Remarks. — This species, of which only a single one was received by Major Le Conte, 

 has no striking character, but cannot be placed with any other with which I am acquainted. 

 It is very regular in its form, with a patulous, auger-shaped, outer lip, the margin of 

 which is quite sinuous. The aperture is nearly one-third the length of the shell. It more 

 nearly resembles M. regularis, (Nobis.) than any other species, but is not so large or solid 

 a shell. 



Melania abrupta. PI. IX. Fig. 32. 



Testa Ixvi, abbreviaio-conoided, suberassa, luted ; spird abbreviaid ; suluris linearibus ; anfractibus scpte- 

 nis, planulatis } aperturd magna, ovaid, intus albidd. 



Shell smooth, short-conical, rather thick, yellowish; spire very short; sutures linear; whorls seven, flattened; 

 aperture large, ovate, within whitish. 



Hab. Alabama. Major Le Conte. 



My cabinet and cabinet of Major Le Conte. 

 Warn. .3, Length .64 of an inch. 



Remarks. — This species in size and form is somewhat allied to M. NicJcliniana, (Nobis,) 

 but has the spire more elevated, and is not reddish. The two specimens before me have 

 each two purple bands. This character may bo frequent without being constant. The 

 aperture is nearly half the length of the shell. 



Melania basalis. PI. IX. Fig. 33. 



Testd Item, eUipticd, suberassd, luteo-viridi, fasciatd } spird curtd, obtusd; suturis impress**; anfractibus 

 convexis; aperturd ovato-elorigald, ml basim acuto-angulatd, intus albidd. 



Shell smooth, elliptical, rather thick, yellowish-green, banded; spire short, obtuse; sutures impressed; whorls 

 convex; aperture ovately elongate, at the base acutely angular, within whitish. 



I lab. Alabama. Major Le Conte. 



My cabinet and cabinet of Major Le Conte. 

 ,)|; " n - • |:! - Length .83 of an inch. 



/,' /.-.—The elliptical form of this species is very remarkable. The spire is very 

 -h,,it and obtuse. The apea of each of the two specimens before me is eroded, two whorls 



only being perfect. It has numerous purple bands, and the aperture is rather i ,- than 



half the length of the .-hell. The base of the shell is extended and slightlj retuse. One 

 of the specimens, pear to the superior part of the whorl, is disposed to swell into large 

 tubercles. The epidermis i- verj smooth and polished. 

 vol. x. — 22 



