UNIVALVES BUCCINUM. 



89 



many are found on the British shores; and also some few 

 in the Mediterranean. 



This genus derives its name from some of its species 

 being formed hke a trumpet. 



BUCCINUM— fFAe/A:. 



A. — Inflated, rounded, thin, subdiaphanous, and 



BRITTLE. 



Olearium — Clouded Tuni^ 

 Galea — Brown Tun. 

 Perdix — Partridge Tun. 

 Pomum — Thick- lipped. 

 Dolium — Spotted Tun. 

 C a udatum — Beaked. 



Niveum — Snowy. 

 Clathratum — Latticed. 

 *Lineatum — Spiral-lined. 

 *Breve — Short. 

 *Minimum — Smallest. 

 *Obtusulun(i — Small obtuse. 



B. — With a si-jort exserted, reflected beak; lip out- 

 wardly UNARMED. 



*Minutum — Small. 

 *L3eve — Smooth. 

 *Obtusissiinum — Very-obtuse. 

 Echinophorum — Tuberculated. 

 Plicatum — Plaited Helmet. 

 Cornutum — Horned Helmet. 

 Rufum — Bull's Mouth. 

 Tuberosum — Casket. 

 Flammeum — Triangular. 

 Testiculus — Purse. 

 Decussatum — Pincushion. 

 Areola — Small-diced. 

 Tigrinum — Tiger. 

 U ndulatum — Waved. 

 Cicatricosum — Cicatrised. 

 Tessellatum — Granulated-spire. 

 Tyrrhenum 



Abbreviatum — Shortened. 

 Pennatuin — Feathered. 

 Maculosum — Spotted. 

 Bilineatum — Two-lined. 

 Gibbum — Gibbous. 

 Ventricosum — Ventricose. 

 S trigosum — Spotted. 

 Rugosom — Rugged-spire. 

 Ponderosum — Heavy. 

 Recurvirostru m — Recurved- beak 

 Trifasciatum — Three-banded. 

 Senegalicum — Senegal. 

 Ochrolecum — Ochraceous. 

 Striatum — Striated. 

 Cassis — Helmet. 

 Strigatum — Zebra. 

 -—Tuscany. 



