EURYC^LON. 349 



Leptoxis pisum. — Shell globular, shiuing, having the Hues of growth 



eflaced; spire very short, decorticated and rounded; mouth widely 



oval, contracted by the columella in front ; columella slightly 



Fig. 662. 

 flattened with an anterior flexure; color shining brown, 



■within white or violet. 



Habitat. — Tennessee. 



Observations. — A species of medium size, remarkable for 

 its exterior and its well developed columellar flexure. — Ualdeman, 



The following is also a synonyrae : — 



Euryccelon turbinata. — Shell smooth, subroturvd, thick, heavy, dark 



horu color, three-banded ; spire obtuse, scarcely exserted ; sutures 



very much impressed ; whorls four, the last very large ; aperture 



large, ovate, within white and three-banded, recurved at the base; 



columella incurved, impi'essed ; outer lip acute. 

 Fig. 663. Fig. 664. r i- ! i- j 



expanded and sinuous. 

 Habitat. — North Alabama; Prof. M. Tuomey 



and Dr. Lewis : Tuscaloosa ; Dr. Budd. 

 Diameter, -56; length, -70 of an inch. 

 Observations. — I have seen only three speci- 

 mens of this species. One, that which is figured, I have had for 

 some years. It is not easily confounded with any species I know, 

 being more turbinate than any which has come Fig. 665. Fig. 664a. 

 under my notice. It is broad above and pointed 

 below, and has an abrupt curvature near the base 

 of the columella made by the impressed callus 

 over the umbilical region. The best specimen has 

 three well defined, brown bands, more distinct within, the other two 

 have them indistinct. These bands do not reach the edge, and the 

 upper one is much the larger. There is a disposition on the callus 

 above and below to be tinted with brown. — Lea. 



I fiiit] that this is only a very much inflated and not fully 

 grown shell of E. crassa. I figure a very young specimen 

 (fig. 6G5), which exhibits a great difference from the adult. In 

 fig. 664a the sharp carina of the young shell is disappearing ; 

 this is snc'ceedcd by the form described l)y Mr. Lea as turbi- 

 nata, and th^n follows the mature form. 



