210 C O N C H L O G Y. 



I fhall now define all Buccina to be Shells 

 whofe mouths are an oblong or very length- 

 ened oval, the upper part whereof is pro- 

 duced or lengthened into a gutter or flight 

 beak : all other characters are fubordinate, 

 and ferve only to conftitute the different 

 genera of the family. 



On this principle I fhall divide the fa- 

 mily of Buccina or Whelks, into the fix 

 following genera, viz. 



J. Buccina Canaliculata, vel Buccina 

 roflro Canaliculato. Guttered Whelks, 

 or thofe whofe upper part of the mouth 

 ends in near a ftrait, and fomewhat pro- 

 longed gutter. PI. I. fig. 3, 4, 5. 



2. Buccina Recurviroftra, vel Buccina 

 ore quafi abfciffo, Canaliculo recurvo ; Buc- 

 cina plagioftoma. Wry-mouthed Whelks, 

 or thofe whofe mouth is, as it were, cut 

 ihort at top, for the gutter or beak does 



not 



