CHITON. 19 



ginal teeth, the largest of which are on the two extreme 

 valves : the back is also more raised, and is carinated, or 

 keel-shaped. We are indebted to Chemnitz for the 

 brown Chiton, among many others which he has added 

 to the genus. It is a native of the East Indies. 



MEALY CHITON. 



25. Chiton minimus. Ch. testa octovalvi, glabra, nigra, hinc indefari- 

 nosa. Linn. Gmel. p. 3205. 



Shell of eight valves, smooth, black, sprinkled with meal in patches. 

 Chem. Conch. 8. t. 96. f. 814. 



This is a very small shell, about half an inch long, 

 and is found in the Norwegian sea. 



BUG CHITON. 



26. Chiton cimex. Ch. testa octovalvi carinata diaphana fasciata ; valva 

 utraque extrema tenuissime punctata. Linn. Gmel. p. 3206. , 



Shell of eight valves, carinated, diaphanous, and banded ; both extreme 



valves finely punctured. 

 Chem. Conch. 8. t. 96. f. 815. 



A small species, about three quarters of an inch 

 long ; of a reddish -brown colour, fasicated longitudinally 

 like the marbled Chiton. Inside marked with blackish 

 bands on a ground of whitish ash-colour. Found with 

 the preceding species. 



MILLEPEDE CHITON. 



27. Chiton asellus. Ch. testa octovalvi nigerrima, supra convexa, dorsi 

 macula in singulis valvis jlavicante. Linn. Gmel. p. 3206. 



Shell of eight valves, deep black, with a yellowish spot on each of the 



valves. 

 Chem. Conch. 8. t. 96. f. 816. Encyclop. Method, pi. 161. f. 12. 



The Chiton asellus is rather more than half an inch 



