36 TERMS USED 



Lcevis is with the edge of the aperture smooth, as in Murex 



Piisio and Melongena. 

 Striata is when the inside of the aperture is marked with 



Unes, as in Murex senticosits. 

 Edentnla is when the aperture is without any teeth, as in 



Buccinum Perdix and Nerita Canrena. 

 Dentata is when the aperture has teeth on one side or the 



other, as in Bucmium Pomwn and Mtirex tritonis. 

 Utrinque-dentata is when the aperture has teeth on both 



sides, as in Voluta Coffea and in the genus Cypresa. 

 Uni-dentata is when the aperture has one tooth only, as in 



Trochus Labio and Turbo Uva. 

 Bi-dentata, Tri-dentato, &c., the aperture with two teeth, with 



three teeth, &c. 



OF THE TAIL, CAUDA. 



Ecandata is when the shell has a notch or hollow on the 

 margin at the part furthest fiom the spire, but not extended 

 into a groove or canal, as in Murex Hippocastanum and 

 neritoideus. 



Brevis is when the canal is very short, as in Murex tritonis 

 and Pusio. 



Truncata is when it appears as if a part had been cut oiF, as 

 in Murex ramosus and Scorjtio. 



Prominens is when it extends but a little way, as in Buccinum 

 echinophorum. 



