92 DESCRIPTION OF NEW 



apex would probably present about three more. The central ones have a dark band 

 below, and are of a rather bright horn-colour above. In this specimen there is a rather 

 coarse stria above the row of tubercles, and two smaller ones below. The margin of the 

 outer lip is quite sinuous. It has some resemblance to M. excurata, Con., but may be 

 distinguished by having a longer fuse, and in the position of the tubercles, which are not 

 oblique, as described in that shell. When other specimens shall be observed it may be 

 found to differ in some of the characters described above. Aperture rather more than 

 one-third the length of the shell. 



Melania pernodosa. PI. IX. Fig. 49. 



Testa tuberculoid, ennoided, subcransd, cornea, in/erne striata; spird elevatd, ad apieem costatd; su/ziris 

 undulalis; anfractibus octonis, planulatis, pernodosis; aperturd parvd, ud bashn angulata et canaliculate, 

 inlus albidd. 



Shell tnberculate, conical, rather thick, horn-colour, striate below; spire elevated, ribbed on the apex; sutures 

 undulated; whorls eight, flattened, tuberculate on the inferior portion; aperture small, angular, and canaliculate at 

 the base, within white. 



Hab. Cypress Creek, Florence, Alabama. T. R. Button. 



My cabinet and cabinet of Mr. Dutton. 

 Diam. .4, Length .68 of an inch. 



Remarks. — This is a very remarkable species, having numerous, somewhat oblique 

 tubercles, thickly set in a single row on the middle of the whorls. In the specimen before 

 me, the only one I have seen, there is a dark spot between each of the tubercles. 

 Towards the apex, the tubercles are more elongate and closely set, so as absolutely to 

 become ribs across the whole of the whorl. The aperture is rather more than one-third 

 the length of the shell. The strise on the inferior half of the whorls are very regular and 

 distinct, and number eight in this specimen. 



Anculosa sq.ualida. PI. IX. Fig. 50. 



Testa Isevi, vel rotunda vel ellipticd, percrassd, tenehroso-corned ; spird obtusd; sitturis vix i?npressis; 

 aperturd magna, subrotundd, inlus albidd; columella percrassd. 



Shell smooth, rounded or elliptical, very thick, dark horn-colour; spire obtuse; sutures scarcely impressed; 

 aperture small, nearly round, within white; columella very thick. 



Ilab. Tuscaloosa, Alabama. B. W. Budd, M. D. 



My cabinet and cabinet of Br. Budd. 

 Biam. .45, Length .77 of an inch. 



Remarks. — Br. Budd submitted five specimens to me, and, as is frequently the case, in 

 this genus, I do not find any two of the five exactly of the same outline. One is nearly 

 round and presents but a single whorl. Another, a younger and more perfect specimen, 

 is somewhat elliptical, and presents five whorls and a mammilate form. A third specimen 

 is quite elliptical, the spire being obtusely conical. It is a very solid species, with a 

 broad, thick columella, and a considerable callus above. All the five arc obscurely 

 banded. This species is allied to A. prserosa, Say, but differs somewhat in form, and has 

 bands, not spotted linos. In some of the specimens the aperture is nearly the whole 

 length of the shell. 



D 



