General conchology; or, a description of shells arranged according to the Linnean system. And illustrated with plates drawn and coloured from nature. Vol. 1 / by W. Wood.
- William Wood
- Date:
- 1815
Licence: Public Domain Mark
Credit: General conchology; or, a description of shells arranged according to the Linnean system. And illustrated with plates drawn and coloured from nature. Vol. 1 / by W. Wood. Source: Wellcome Collection.
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![MULTIVALVE SHELLS Genus ]. CHITON. GENERIC CHARACTER. Animal Lophyrus. Testce plures longitudinaliter digestae, dorso incurabentes. Animal a Lophyrus. Shells (valves or plates) many, arranged longitudinally, and resting on the back. GENERAL OBSERVATIONS. Poli, in the third plate of his splendid work on the shells of the two Sicilies, has given a complete anatomical figure of the animal of the Chiton, from which it appears not to be a Doris, as supposed by Linnaeus, but suffi¬ ciently distinct to constitute a new genus. The animal has an oval body, flat beneath, without eyes or tentaciila, an oval foot; a head surmounted by a crest, with a wrinkled mouth beneath: the exterior air vessels are separate, pinnated, and placed round the body, between the mantle (or folding muscle) and the foot. It is obvious that it differs from a Doris in the want of ten¬ tacular (or feelers), and in the presence of a crest, a distinction upon which Poli has established his genus, and from whence he has derived his greek name x6<pv^oi. Chitons are to Testacea what armadillos are to quad¬ rupeds, and millepedes to insects; that is, like them *](https://iiif.wellcomecollection.org/image/b29337240_0085.jp2/full/800%2C/0/default.jpg)
