DELPHINULA? LAXA. 



SPECIFIC CHARACTER. 



Whorls all separate and distinct. 



SYNONYM. 



Delphinula LAXA. Nobis. Journ, *^cad, Nat. Sc. vol. 

 V. p. 207. 



DESCRIPTION. 



Shell regularly spiral, subovate, nearly glabrous, whitish, 

 slightly tinged with dull yellowish : whorls rounded, per- 

 fectly disjoined throughout, rapidly attenuated to the apex ; 

 a dilated, rugous, shallow groove on the line of the umbi- 

 licus : aperture oval-orbicular, with an acute edge. 



OBSERVATIONS. 



This very remarkable shell was sent to me for exami- 

 nation by the late Mr. Stephen Elliot of Charleston, who 

 found but a single specimen on Sullivan's island ; it must 

 therefore be considered very rare. 



On a first view I was inclined to refer it to the genus 

 Vermetus, in consequence of the separated nature of the 

 volutions, and the broken apex of the spire, but a more 

 careful examination exhibited the broad rugous groove, 



PLATE VII. 



