SIGARETUS PERSPECTIVUS. 



SPECIFIC CHARACTER. 



"Depressed : beneath, revolutions visible almost to the 

 .jiummit. 



DESCRIPTION. 



Shell oval, very much depressed, but a little convex, 

 witb numerous, transverse, slightly undulated, sub-equi- 

 distant, impressed lines and longitudinal wrinkles; trans- 

 verse lines obsolete beneath : spire not at all prominent, 

 only a little convex : volutions about three : suture a sim- 

 ple impressed line : untkin. the slightly elevated line is 

 more or less obvious, not reaching the margin of the la- 

 brum : revolution of the whorls visible almost to the sum- 

 mit. 



OBSERVATIONS. 



This shell is abundant on the coast of New Jei*sey and 

 farther south ; but I have never had an opportunity to ex- 

 amine the animal. 



I have carefully compared many specimens with a shell 

 sent me by Mr. G. B. Sowerby, under the name of halio- 

 toideus, L. but which seems more accurately to corre- 

 spond with the leachii, Blainville, as figured by Sowerby 

 in his "Genera," and of which Blainville has formed his 



