202 Mr. Freiubly on some species ofChilones 



**** LIGAMENTO MAUGimS VILLOSO. 



8. Chiton Peruvianus. 



C. testa obloiigo-ovatii, minutissime granuloso-striata ; ligamento 

 niarginali coufertim hirsute ', iuterstitlis valvarum pilosis. 



Tab. Supp. XVII. f. 4. 

 Syn. Chiton Peruvianus, Lam. Hist, Nat. des. Anim. sans vert. 

 VI. 1"° part. p. 321. Eiicycl. Meth. pi. 163, f. 7. 8. Icon 

 pessima. 



Shell oblong-ovate, opaque, dirty yellowish green, or yellowish 

 brown, inside white. Valves eight, thin, slightly elevated : pos- 

 terior compartments of the dorsal valves a little raised and striated, 

 with minute granulate striae, and in like manner the other parts of 

 the shell ; under each valve is inserted a series of short black hairs, 

 which lie on the back of the shell. Border narrow, coriaceous, 

 thickly set with coarse black hairs. Length two inches, breadth 

 one inch and a half. Found under stones at low water, on the 

 shores of Valparaiso Bay. 



A variety of this species occurs having the anterior valves much 

 narrower than the posterior. 



C. Peruvianus, Lam. An. sans vert. VI. p'« 1"* p. 321, figured 

 in the Ency. Method, pi. 163. fig. 7 and 8, is perhaps another 

 species belonging to this sub-division. It certainly cannot be in- 

 tended for a representation of mine, as neither the description or 

 figure agree with it. The character Lamarck assigns to C. Peru- 

 vianus " testa substriata" is not at all applicable to mine, which 

 is finely granulate: under these considerations I venture to give 

 this as a new species.* 



* The above observations naturally occur upon comparing this species wiili 

 Lamarck's description, and the figures in Encycl. Meth. Having, however^ 

 taken an opportunity of examining the specimen of C. Peruvianus in Lamarck's 

 own collection, 1 am enabled to state that it is certainly the same species, and 

 in the author's absence I have ventured to cancel his new name. G. B. S. 



