294 NEW MELANID/E OF THE UNITED STATES. 



gosely impressed; whorls about nine, flattened; aperture rather large, rhomboidal, 

 white within ; outer lip acute, sinuous ; columella thickened below and very tortuous. 



Operculum subovate, dark brown, with the polar point near to the base on the left. 

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



Hob. — Tennessee, J. G. Anthony ; Warrior River and Yellow Leaf Creek, Alaba- 

 ma, Dr. Showalter ; Fox River, Indiana, J. Sampson. 



My cabinet and cabinets of Mr. Anthony, Dr. Showalter, Dr. Hartman and Mr. 

 Sampson. 

 Diam. -63, Length 1*43 inch. 



Remarks. — A number of specimens of this fine large species is before me from vari- 

 ous habitats. It is allied to Melania (Trypanostoma) canaliculate, Say, but it may 

 easily be distinguished from it by the absence of a regular canal, and being a less 

 ponderous shell. The color, too, is more of a yellow green ; usually there are three or 

 four rather coarse strire about the middle'of the whorl, which form irregular canals. 

 The canal at the base is wide and much recurved. Some specimens are almost entire- 

 ly smooth, and some are II inches long. The aperture is about one-third the length 

 of the shell. I name this after Mr. J. G. Anthony, to whom I am indebted for several 

 line specimens, and many other species from Tennessee. 



Trypanostoma striatum. PI. 36, fig. 124. 



Testa striata, subulari, subtenui, cornea ; spira elevata ; suturis imprcssis ; anfractibus instar octonis, convexi- 

 usculis, ultimo subparvo ; apertura parva, subrhomboidea, intiis albida ; labro acuto, valde siuuoso, ex- 

 panso; columella paruih incrassata et valde sinuosa. 



Shell striate, subulate, rather thin, horn-color; spire raised; sutures impressed; 

 whorls about eight, somewhat convex, the dast rather small ; aperture small, sub- 

 rhomboidal, whitish within ; outer lip acute, very sinuous, expanded ; columella some- 

 what thickened and very sinuous. 



Proc. Acad. Nat. Sci., 1862, p. 173. 



TIab. — Florence, Alabama, B. Pybas. 



My cabinet and cabinets of Mr. Pybas and Dr. Hartman. 

 Diam. -31, Length -95 inch. 



Remarks. — Nearly a dozen of this species were received among a number of small 

 shells from Mr. Pybas. It is not an attractive species, being dull horn-color and without 

 bands. The upper whorls are covered with revolving stride which rarely extend to 

 the last one, except a single one on the upper part of this whorl. It has much the 

 form and size of Melania {Trypanostoma) strigosa, (nobis), but may at once be distin- 

 guished by the difference in the form of the aperture, the base of the columella of 

 striatum being rounded, while strigosa is nearly straight. The length of the aperture 

 is about three-tenths the length of the shell. 



