152 UNIVALVES TURBO. 



The American, African and Indian Oceans, produce 

 the greater number of species ; a few only are found in 

 the Mediterranean, European, and Northern Seas. 



Division I. — Shell imperforate, and the pillar lip fiat. 

 Family 1. — With a smooth exterior. 



Scientific Name. Locality. Common Name. 



Obtusatus Northern Ocean ■■•.*•••. Blunt Turbo • • 



Neritoides Mediterranean Nerite shaped do 



Nicobaricus Nicobar Isles Nicobar • • • do • 



Nigerrimus New Zealand Black do • 



Rudis Norway, Britain Sordid do • 



Punctatus • • Goree Punctured • do • 



Petrseus Dorset, Devon Small rock do • 



Fulgidus Pembroke, Cornwall • • • Bronze-banded do 



Family 2. — With the exterior striated or ribbed. 



Littoreus- • • • > • • Britain, Norway Periwinkle 



Tenebrosus .•••• England "•- Chocolate .do-- 



Crassior Ditto Coarse • • • do • • 



Jugosus Ditto Lineated ■ • do • • 



Ethiops New Zealand Black & white do 



Division II. — Shell imperforate, solid. 

 Family 1. — With a smooth exterior. 



Personatus Convex • • • do • • 



Petholatus Amboyna, Mauritius • • • Serpent's skin do 



Cidaris Moluccas Turban • - - • do • • 



Hehcinus Green & purple 



Imperialis China-. •- Imperial ••• do • • 



