CHITON. 15 



INDIAN CHITON. 



16. Chiton Indus. Ch. testa octovalvi ex cinereo albida, Umbo squamoso, 

 valvis mediis subtilissime punctatis Linn. Gmel. 1. p. 3205. 



Shell of eight valves, whitish ash colour, margin scaly, middle valves 

 very finely punctured. 



Chiton Indicus. Chem. Conch. 8. t. 96. f. 811. , 



Inhabits the American ocean; is rather more than 

 an inch long. 



GREEN CHITON. 



17. Chiton viridis. Ch. testa octovalvi, carinis triangularibus scaber- 

 rimis subdenticulatis, limbo squamulis minutissimis obsito seu obtecto. 

 Chem. Conch. 10. pi. 373. 



Shell of eight valves, keel triangular, rough, slightly toothed ; margin 

 covered with minute scales. 



Encyclop. Method, pi. 162. f. 9. 



This shell is of a grass green colour, with a banded 

 margin. This and No. 34, though distinct species, have 

 been ranked by Gmelin as varieties of the C. squa- 

 mosals. 



STRIPED CHITON. 

 PI. 2./. 4, 5. Mr. Jennings. 



18. Chiton lineatus. Ch. testa octovalvi Icevi, valvis lincatis, limbo lato 



coriaceo. 

 Shell of eight smooth valves, valves streaked, margin broad and coriaceous. 



The ground colour of this elegant shell is bright ches- 

 nut, with an interrupted white band running along the 

 back ; undulating white lines, edged beneath with black, 

 pass diagonally across the marginal triangles, and con- 

 centrically on the extreme valves. The white band on 



