NEW MELANlDZE OF THE UNITED STATES. 293 



infrafasciata, Anth., from Tennessee, but may be distinguished by its channel above 

 the middle of the whorls, and in having three bands visible in the interioi*, while the 

 infrafasciata has but one, as described by Mr. Anthony, and none are on tbe superior 

 whorls, as all our three have. The aperture is about three-tenths the length of the 

 shell. 



Trypanostoma Siiowalterii. PL 36, fio;. 122. 



Testa striata, interdum Isevi, valde exserta, crassa, subcylindracea, vcl cornea vel fused, interdum inferne 

 vittata; spira valde elevata; suturis valde impressis; anfractibus novenis, subplanulatis ; apertura 

 parva, rhomboidea, intus vel albida vel salmonifi ; labro acuto, parum sinuoso ; columella inferne in- 

 crassata et valde contorfca. 



Shell striate, sometimes smooth, much drawn out, subcylindrical, thick, horn-color 

 or brown, sometimes banded below ; spire much raised ; sutures much impressed ; 

 whorls nine, somewhat flattened ; aperture small, rhomboidal. whitish or salmon 

 color within ; outer lip sharp, somewhat sinuous; columella thickened below and very 

 much twisted. 



Proc. Acad. Nat, Sci., 1862, p. 172. 



Hah. — Cahawba River, Alabama, E. R. Showalter. M. D. ; Tuscaloosa, Alabama. Dr. 

 Budd ; Oostanaula River, Georgia,, Rev. G. White and Bishop Elliott. 



My cabinet and cabinets of Dr Showalter, Bishop Elliott, Dr. Hartman. and Dr. 

 Budd. 

 Diam. *46, Length T3S inch. 



Remarks. — This is a very remarkable species, having a high subcylindrical spire and 

 a small aperture. Six from the Oostenaula are all more or less striate, two of 

 them having a well defined revolving band near the base on the inside, one has 

 an obsolete band, and the remaining three are without a band. Three of these speci- 

 mens are of a bright horn-color, the others are dark brown, and one has indistinct 

 bands above the dark one. The thickened part of the columella in three specimens 

 is of a light salmon. Three of the four from Cahawba River are slightly striate, the 

 fourth smooth. These have no bands and are all white on the columella. The 

 aperture is about one-fourth the length of the shell. I have great pleasure in naming 

 this after Dr. Showalter, who has done so much in the development of the Mollusca 

 of his State. 



This species is closely allied to Melania (Trypanostoma) Ordii, (nobis), but it is more 

 attenuate and more cylindrical. 



Trypanostoma Anthonyi. PL 30. fig. 123. 



Testa rugoso-striata, pyrarnidata,, crassa, luteo-olivacea ; spira elevata. ; suturis rugoso-impressis ; anfrac- 

 tibus instar novenis, planulatis ; apertura subgraudi, rliouiboidea, intus alba; labro acuto, sinuoso ; 

 columella inferne incrassata et valde contorts. 



Shell rugosely striate, pyramidal, thick, yellowish olive; spire raised; sutures ru- 



75 



