214 G O N C H O L O G Y. 



The fpecies of thi3 genus are very nu- 

 merous; and the varieties of their fhapes 

 and works are vaftly diverfified. 



I do not find that any authors, except Lif'> 

 ter and Oavila, have made a feparate genus 

 of thefe Whelks, folely on account of this 

 charadler. Lifter ranges moft of them ii^ 

 feft. XV. of hb. iv. and calls them Whelks* 

 whofe tops are (hort, or do not extend be- 

 yond the mouth. Davila makes them hi^ 

 fecond genus, which he calls Whelks 'j[' 

 with a notched mouth without any beak. 



The third genus of Buccina I make to 

 be thofe with a very long and extended 

 beak, (Buccina longiroftra), fuch as the 

 Purpune j, Tower of Babel, Crane, and 



^ Buccina qua roftrum breve oris hiatum non ex- 

 cedens, 



t Buccins a bouche ecliancree^ depourvue de 

 queue. 



X The Purpur3e are properly to be placed with thefc 



Buccina longiroftra, and not form a diflindl genus, 

 for the diftin£lions between them are not built on 

 real or decifive cliaracters. 



Others 



