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 

 unknown; 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 Sy sterna 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 Coat of Mail. 



DIVISION I. Having a scaly margin. 



Squamosus Scaly. Cumingsii Cumings's. 



Bistriatus Striated. Olivaceus Olive. 



Fasciatus Banded. G ranosus Grained. 



Viridis Green. Glaucocinctus Azure- banded. 



Tessellatus 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. 



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