GASTROPODA— -VOLUTIDJE. 



793 



599. V. (Rostellites) texturatus Whitfield. Cretacic. 



With short spire and very long, slender body whorl forming 



about six sevenths of entire length; aperture long and narrow; 



Fig. 1 162. Rostellites biconicus, internal mold. (After Whitfield.) 



surface marked by strong spirals and weaker lip-like ridges, which 

 sometimes node the spirals. 



Ripleyan of New Jersey, Alabama and Mississippi. 

 600. V. (Rostellites) dalli Stanton. (Fig. 11 63, a, b.) Cretacic. 



Fig. 1 163. a, b, Rostellites dalli ; e,d, R. ambigulus. All X 2 A- (After Stanton.) 



Spire moderate; shoulder concave; angle with nodes which con- 

 tinue downwards as ribs for a short distance ; early whorls rounded 

 and ribbed. Spirals numerous and compound ; canal nearly straight. 



