FRESH WATER AND LAND SHELLS. 89 



Remark*. — A single specimen only of this species was submitted to me by Major Le 

 Conte. It is very nearly allied to .1/. elevata, Say. but may be distinguished by its thread- 

 like carina on the middle of tin- whorls, which, on the superior ones, presents a mere sim- 

 ple line. The outer lip is remarkabl) patulous, presenting the auger-shaped lip which 

 belongs to a certain group of the Melanix. The apex being imperfect, the number of 

 whorls cannot be ascertained. There arc eight visible on this specimen, and it probably 

 possesses ten in a perfect state. The aperture is about one-third the length of the shell. 



Melania spinalis. Tl. IX. Fig. 42. 



Testa carinatd, acuto-conoided, subtenui, luted, bifasciatd; spird elevata; suluris exaralis; anfraclibus 

 planulalis; aperturd parvd, oval 6, ad basim angulald, intus albidd. 



Shell earinatc, acutely conical, rather thin, yellow, double-banded; spire elevated; sutures ploughed out; whorls 

 flattened; aperture small, ovate, angular at the base, while within. 



Hal). Alabama. Major Le Conte. 



Cabinet of Major Le Conte. 

 Diam. .33, Length .90 of an inch. 



Remarks. — A single specimen only was submitted to me, and this not very perfect. It 

 i- a peculiar shell in its general appearance. The colour being of an unusually bright 

 yellow, with two broad, distinct bands, one immediately above the middle of the whorl 

 and the other below. The superior part of the whorl is darker than that below. The 

 number of whorls cannot be given, the apex being broken. There were probably nine or 

 ten. The aperture is about one quarter the length of the shell. 



Mr.i. \m \ vallescens. PI. IX. Fig. 43. 



Testa carinatd, subaruto-conoided, subtenui, luted; spird subelevatd ; suluris imprcssis; anfraclibus novenis, 

 subconuexii ; aperturd parvd, ovald, ad ba im angulatd, intus albidd. 



Shell carinate, rather acutely conical, Bomewhat thin, yellow; spire somewhat elevated; sutures impressed; 

 whorls nine, rather convex; aperture small, ovate, angular at the ba e, within whitish. 



Ilab. Chester Di.-trict, South Carolina. Professor Vanuxem. 



My cabinet and cabinets of Professor Vanuxem and Major Lc Conte. 

 Diam. 34, Length .87 of an inch. 



Remarks. — Many years since. m\ friend Professor Vanuxem gave me several specimens 

 of this .-hell. Until recently, I was nol satisfied that it was not merely a variety of 

 semicarinala, Say, hut I am disposed to think it differs too much to be considered merely 

 a variety. It is a larger -hell, with more whorls and more distinct carinations. The 

 colour also differs, in being much lighter, A single specimen was among the shells si nl 

 from Major Le Conte, which, 1 suspect, is from Georgia, the locality not being certain. 

 Those from Professor Vanuxem are from MajorGreen's farm. The aperture is less than 

 one-third the length of the shell. All the specimens are without band- but one, which 

 has four large, distinct one-. 

 vol. x. — 23 



