ZOOLOGY. 259 



6Vte// convolute ; aperture narrow, without a beak ; colu- 

 mella plaited. Plate 5, fig. 23. This genus is composed 

 of five families; * aperture entire: ** subct/lin- 

 dricalj emarginate ; *^* oval, cfiluse, emarginatc ; **** 

 fusiform, or spindle shaped; ■^**** rejz^ncose, spire 

 papilUary at the top. 



This is a very oxfcnslve genus, the greater part of which 

 are natives of the tropical seas, and are only found on the 

 shores after storms ; but few kinds are European, and these 

 do not possess any great degree of beauty, whilst the tropical 

 kinds are amongst the most beautiful of the whole tribe. 



24. Buccinum. Whelk. Inhabitant a Limas. 



Shell spiral, gibbous ; aperture oval, terminating in a short 

 canal inclining to the right, with a short beak / interior 

 /«}? flattened. Plats 5, fig. 24. This genus is divided 

 into eight families; * injlated, ronuded, thiii, nearly 

 transparent, brittle; ''•"'* with a short .exerted re- 

 Jlected beak, lip unarmed outwardly; *** outer 

 lip prickiy on the hinder margin, in otlicr respects cor- 

 responding with the preceding; **** Columella lip 

 dilated and thickened ; ***** Columella lip, as if worn 

 flat ; ***** ^ smooth, not included in the preceding divi- 

 sion ; ******* angular, not previously included ; 

 ******** tapering, awl shaped and smooth. 



Most of this genus are found adhering to rocks or stones, 

 beneath the surfaca of the ocean, but some few are terrene 



s 2 



