VIVIPARA. 21 



St. John's River, Florida. 



The whorls of this species are only slightly 

 convex, closely revolving, with sutures but 

 little impressed. It is the shell believed by 

 Say and Haldeman to = Bengalensis, Lam. 



Subgenus MELANTHO, Bowditch. 



* Banded, or reddish tcitJiin. 



6. VIVIPARA SUBPURPUREA, Sai/. 



Hald., p. 28, t. ix. 



8. VIVIPARA TEXANA, Trijon. 

 Plate 13, figure 3. 



Shell solid, narrowly conic, light green col- 

 ored, with faint bands ; spire elongate, suture 

 deeply impressed, apex obtuse ; whorls 6, 

 slightly convex ; aperture small, suborbicular, 

 equalling two-fifths the shell's length. • 



Length 28, diam. 15 mill. 



Texas. 



[47] 



