﻿300 GABB'S DESCRIPTIONS OF 



Locality and 'position. — White limestone, Prairie Bluff', Alabama. Collection of the 

 Academy. 



Straparolus lapidosus. 



Delphinula lapidosa, S. G. M. PI. 48, fig. 5, a, b. After examining the type of 

 Morton's species I am convinced that it cannot belong to the genus Delphinula. I 

 therefore refer it to the above genus, to which it appears to belong. The figures 

 show the generic characters more strongly than in the original figure. 



VOLUTILITHES, Sow. 



V. biplicata. PL 48, fig. 6. Shell fusiform, robust ; whorls four ; spire low ; mouth 

 two-thirds the length of the shell, two folds on the columella; surface markings 

 unknown. A cast. 



Locality and position. — Brown marl, Burlington Co., N. Jersey. Collection of the 

 Academy. 



V. bella. PI. 48, fig. 7. -Shell fusiform, slender; whorls five; spire elevated; 

 mouth about three-fifths the length of the shell ; two folds on the columella ; surface 

 markings unknown. A cast. 



Locality. — Delaware and Chesapeake Canal. Collection of the Academy. 



V. Saffordi. PI. 48, fig. 8. Shell fusiform, wider than the preceding species ; 

 whorls four or five ; spire low ; mouth three- fourths the length of the shell ; two folds 

 on the columella ; surface marked by longitudinal ridges, crossed by smaller revolving 

 lines. 



Locality. — Tennessee. Prof. Safford. 



V. nasuta. PI. 48, fig. 9. Shell elongated, narrow; whorls about four; spire 

 very elevated ; mouth about two-thirds the length of the shell ; three folds on the 

 columella; surface markings unknown. From traces on the cast, apparently marked 

 by crossed revolving striae. 



Locality. — Monmouth Co., N. J. My own collection. 



There is a fragment in the collection of the Academy, found at Crosswicks, N. J., 

 and apparently belonging to this species, nearly twice the size of the specimen figured. 

 This species somewhat resembles V. Texana {Eostellites Texana, Con.) but can be 

 readily distinguished by its being smaller, more slender, and by its having but three 

 folds on the columella, while the latter has at least eight or nine. 



V. Conradi. PI. 48, fig. 10. Shell fusiform, tapering; whorls about four; spire 

 small and but slightly elevated ; upper side of the whorls subangular ; surface mark- 

 ings unknown. From marks on the cast, it was apparently ornamented by longitu- 

 dinal ridges, crossed by revolving lines ; one fold on the columella. 



