DESCRIPTION, 



Shell oblong-conical with longitudinal ribs rendered 

 nodulous or moniliform by the passing of elevated spiral 

 strise over them ; ribs about twenty on the body whorl, 

 almost interrupted by the interstices of the strise ; striae 

 about seven, with intermediate smaller ones, on the body 

 whorl, and but three on the second whorl; volutions 

 seven ; suture inconspicuous ; aperture oblique, oval, whit- 

 ish within ; labrum slightly thickened on the exterior mar- 

 gin, and with obsolete impressed lines on the inner side 

 corresponding with the exterior strise; colour ferruginous. 



OBSERVATIONS. 



Communicated by Mr. Elliott as an inhabitant of the 

 southern coast of Florida. Its general form is similar to 

 that of the preceding species, but it is smaller, its eleva- 

 tions are more rounded like granules, and its ribs are not 

 bifid. 



REFERENCE TO THE PLATE, 



Fig. 3, front view, c»largecl. 



c natural length. 

 PL 49. 



