Mr. Frembly on some species of Chitones from Chili. 193 



Art. XIX. A Description of several new Species of 

 Chitones, found on the Coast of Chili, in 182.3 y with a 

 few remarks on the method of taking and preserving them. 

 Bj/ John Frembly, R.N., Corresp, Memh. Zool. Soc. 



The difficulty of capturing, and the concealed situations in- 

 habited by this interesting genus, is perhaps the principal cause of 

 so small a number of its species being known ; with the hopes of 

 adding a few to the catalogue, my attention was principally 

 directed towards them, whenever opportunities for collecting 

 ofl'ered themselves. 



Having been so fortunate as to discover some decidedly new 

 species, and others which were but imperfectly known, and 

 of which the descriptions and figures were very incomplete, I 

 have been induced to submit the following details to the public, 

 but with the conviction that my small stock of knowledge in the 

 science is scarcely sufficient to do justice to the subject. 



The decided and strongly marked characters of the species 

 which I am fortunate enough to bring to notice, render it un- 

 necessary for me to depart from the mode of description generally 

 adopted by Conchologists, in recounting the peculiarities of the 

 individuals of this genus already known. Their habits and eco- 

 nomy, as far as I have been able to inform myself, will be de- 

 tailed at length. 



The unnatural distortions, and imperfect state of preservation 

 in which the species are generally brought to us, is an evil that 

 Conchologists have long had reason to complain of ; and which 

 prompts me to place in this article a description of my mode of 

 taking and preserving these animals, hoping it may afford to future 

 collectors the advantages 1 have derived from it myself. 



Some care and dexterity is requisite in taking the animals from 

 the substances to which they attach themselves. On turning a 

 stone (on the underside of which they are generally found), force 

 will not be necessary to detach them, if instead of attempting to 

 tear them directly from the stone, they arc gently slid off from it : 

 Vol. III. N 



