MULTIVALVES. — CHITON. 27 



The habitat, or place of residence, of these shells seems to 

 appertain, indiscriminately, to all parts of the globe. — Ame- 

 rica affords the most ; the coast of Chili has recently fur- 

 nished many very beautiful species which were previously 

 imknown; several are from the East Indies; Africa sup- 

 plies a few ; and the Northern seas contribute their portion 

 of the remainder. 



The Chiton, like the limpet, is generally found adhering 

 to rocks and other substances, as shells, stones, madrepores, 

 corals, &c., and some of the northern species frequent the 

 roots of sea weed. 



The following is a list of the different species, taken from 

 Gmelin's last edition of Linnseus's Systema Naturae, with 

 the addition of those species which have been discovered 

 since the publication of that work. A similar list will fol- 

 low the general description of each genus, — The species 

 found on the British coasts are distinguished by an asterisk. 



CHITON— Coa^ of Mail. 



Division I. — Having a scaly margin. 



Squamosus — Scaly. Cnmmg&u—Cumiyigs' s. 



Bistriatus — Striated, Olivaceus — Olive. 



Fasciatus — Banded. Granosus — Grained. 



Viridis — Green. Glaucocinctus — Azure- handed. 



Tei,?,e\\dii\xs— Tessellated. Granulosus — Brown-marbled. 



Sulcatus — Furrowed. Peruvianus — Peruvian. 



Maculatus — Spotted. Disjunctus — Disjoined. 



Marmoratus — Marbled. Elegans — Elegant. 



Indus — Indian. Lineolatus — Linear. 



Coquimbensis — Coquimbo. Chilensis — Chili. 



Division II. — Having a coriaceous margin. 



Fulvus — Tawny. Castaneus — Chesnut. 



Tunicatus — Coated. Lineatus — Striped. 



c2 



