36 BuivLETiN 5 306 



130 FOSSIL SHELLS. 



tioned, the specimen agrees very well with the 

 species to which I have referred it. The granu- 

 lations which crown the spire of the young shell 

 are very evident in this specimen. These eleva- 

 tions characterize the Murex granum, Schroeter, 

 which Linne considered to be the young of this 

 species. 



2. F. carica, Gmel. 



Lister, Conch, pi. 880. 



F. eliceans, Montf. p. 152. Knorr delic. pi. 30. f. i. 



There can be no doubt of the identity of a spe- 

 cimen collected by Mr. Finch, with this species. 



The carica varies considerably in the magni- 

 tude and number of the elevations which consti- 

 tute the armature of the shoulder. In the young 

 shell they are more numerous than in the adult, 

 and the beak is proportionally longer and more 

 slender. A variety in this fossil collection has the 

 elevations of the shoulder hardly prominent. 



CALYPTR^A. 



I. C. graiidis. PI. vii. fig. 6. a. Internal view, 

 b. Lateral view. Ovate ; internal appendage di- 

 lated, and attached to the side of the shell. 



Description. Shell large, ovate at base, inequi- 

 lateral, concentrically wrinkled, destitute of spines 

 or processes : apex behind the middle nearly erect : 

 internal appendage transverse, patulous, occupy- 

 ing a considerable portion of the cavity of the shell, 



[J. A. N. S., Phila., ist Sen, Vol. IV, 1824.] 



