Description of some New Species of Fossil Shells. 95 



FAMILY SCALARTANA. 



Genus Scalaria. — Lamarck. 

 S. elegans. PL 1, fig. 6. 



S. testa turrita, imperforata, teniii, polita ; spira acuta ; anfrac- 

 tibus senis, convexis, sessilibns ; costis longitudinalibus quinde- 

 cim ; suturis profundis ; columella laevi ; apertura elliptica. 



Shell turrited, imperforate, thin, polished ; spire acute ; whorls 

 six, convex, sessile ; with fifteen longitudinal ribs; sutures deep; 

 columella smooth ; mouth elliptical. 



Length -1. Breadth ^'^th of an inch. 



Remarks. — This is one of the most minute, and at the same 

 time most elegant of the Scalarice which I have seen. The last 

 whorl is ribbed only to the middle. It differs from S. planulata, 

 Lea, in having fifteen instead of twelve ribs on each whorl, in 

 the mouth being elliptical, its size, &c. 



S. venusta. PL 1, fig. 7. 



S. testa subulata, imperforata, crassa ; anfractibus , sessili- 



bus, convexis, costis tredecim ; ultimo anfractu carinato, costato 

 ad carinam ; suturis profundis ; apertura sub-elliptica, parva. 



Shell subulate, imperforate, thick ; whorls , sessile, con- 

 vex, with thirteen ribs ; last whorl carinate, ribbed to the carina ; 

 sutures deep ; mouth sub-elliptical, small. 



Length . Breadth -25 of an inch. 



Remarks. — In this species the ribs are quite thick, and there is 

 a large varix on each whorl. In this character it resembles the 

 S. quinquefasciata, Lea, but it differs from it in other respects. I 

 have been able to obtain but two specimens of this shell, both of 

 which have the spire very much fractured ; enough however re- 

 mains to convince me of its differing from any species that I have 

 seen. 



FAMILY TURBINACEA. 



Genus Turbo. — LinncEUS. 

 T. parvus. PL 1, fig. 8. 

 T. testa conica, ventricosa, umbilicata, crassissima, lasvi, polita ; 

 um.bilico parvo ; anfractibus quaternis, planulatis ; suturis impres- 

 sis ; apertura rotunda. 



