758 



NORTH AMERICAN INDEX FOSSILS. 



508. S. chipolanus Dall. (Fig. 1 104.) Oligocenic. 



Differs from the preceding in its larger size, stronger and 



sharper shoulder nodules, more slender spire and less thickened 



Fig. 1 104. Strombus chipolanus, about three fourths nat. size. (After Dall.) 



outer lip, with stronger posterior and larger anterior notch, and 

 less elevation posteriorly. Body and throat Urate. 

 Occurs with the preceding. 



509. S. pugilis Linne. Miocenic-Recent. 



Larger than the preceding; spire low, strongly spinose; body 

 whorl tapering, outer lip not strongly expanded, with deep antero- 

 lateral, and strong anterior notch. Callus of inner lip extensive. 



Miocenic of Haiti, Jamaica, and Costa Rica ; Pliocenic of Costa 

 Rica and Florida; Pleistocenic and Recent from the Carolinas to 

 Florida and the West Indies. 



Family Cypr^eid^e Gray. 



CXLII. Cypilea Linne. 



Spires of adult wholly covered by expanded outer lip, which 



curves inward, leaving a narrow, elongate aperture, both sides of 



which are strongly lirate ; entire surface smooth and polished. 



Jurassic-Recent. 



510. C. mortoni Gabb. Cretacic. 



Small, ovate; margins of aperture finely crenulated. 

 Ripleyan (generally internal mold) of New Jersey and Alabama. 



