CONTRIBUTIONS 



A. lineatus. Plate 4. Fig. 97. 



Description. Shell conical, transversely furrowed ; fur 

 rows closely set with minute punctures ; substance of the 

 shell thin ; spire elevated, pointed ; suture impressed ; colu- 

 mella with one fold ; whorls six ; mouth rather narrow, 

 about half the length of the shell ; outer lip crenate. 

 Length .3, Breadth 3-20ths, of an inch. 



Observations. This very beautiful and interesting little 

 species closely resembles the last described, but is spe 

 cifically different. It has a still closer resemblance to a 

 species in my cabinet from the Paris basin, which I do not 

 know to be described. It is not, however, quite so elevated 

 as that specimen. It differs, also, in having one band or 

 space, without a furrow, on the superior part of the body 

 whorl, while the other has two such bands. In our spe 

 cies the superior whorls have but three furrows, that from 

 Paris has four. These characters may be found to differ in 

 other individuals. In outline it resembles the striatus 

 (Sowerby) (Min. Conch, vol. 5), but differs in many other 

 characters. The Jlcteon ovoides (Conrad), from the Ter 

 tiary of Maryland, is very similar to this in general form, 

 but does not appear to have any punctures in the furrows. 

 I have not, however, seen a good specimen of it. 



