PLATE XV. 



_*f**tJtetii*;/&$y. . 



3!tellJ*1a7~e* oCMim are 



ense 

 &. irrt m ft ni ca&es xrtf/, frit*. 



-ft&'fLs <i/fer&<m all otfrer 



ffiia larv-al Citmet* 'fion f/te 



E. C. PA^iOi ad ^rA 1 ' c < < < c c c c t c c c c c 



Prepared by P. J, R. 



Animal, Shell-plates, etc., of Chiton. 



(Half nat. size.) 



