CONCHOLOGY. 



or swollen, the summit obtuse and ending in a kind of papilla, or 

 teat, the base of the shell cut off or somewhat truncated : without 

 canal, and the pillar charged with plaits or folds, of which the infe- 

 rior ones are the largest and longest. The precise contrary of this 

 is observable in the new genus Mitra, of which Voluta Episcopalis 

 is considered as the type. In this last mentioned shell, the body 

 instead of being ventricose is subfusiform, the spire pointed at the 

 summit, and the lower plaits upon the pillar smaller instead of 

 larger. The contrast between these two tribes will, it is conceived, 

 sufficiently illustrate the characteristic peculiarities of the genus 

 Volute, as it is at present constituted. 



