Barnes on the Genus Chiton* $Q 



to the Lyceum. The notes and sketches we made, are re- 

 served for a future publication, after the arrival of other 

 specimens which measures have been taken to procure. 



Such is my present view of the manner in which these 

 several reptiles ought to be disposed in zoology : observing 

 at the same time that if they or any of them should hereaf- 

 ter be discovered to be gyrini, larvae, or immature or im- 

 perfect beings, they must be referred to the genus of Sala- 

 mander, and not to the Tritons any further than this word 

 signifies the Salamander with a flat tail in the state of Larva. 



In this attempt to disentangle an intricate subject, 1 hav« 

 had the anatomical description of the Larvae of aquatic Sala- 

 manders by Dr. Mauro Ruconi, in his letter to ;ign. Broc- 

 ehi, constantly before me ; as also the monography, by the 

 same able observer and his friend, Professor Configliacchi 

 of Pavia, of the Proteus anguinus : together with their ele- 

 gant illustrations by coloured figures. 



S. L. M. 



Art. IX. — Description of Jive species of Chiton, by D. W. 

 Barnes, M. A. Member of the J\^ew-York Lyceum of 

 Natural History. 



The rapid advancement of Natural History, in our coun- 

 try, during the last ten years, has been owing, in a very 

 considerable degree, to the zeal and liberality of gentlemen 

 attached to the Publick Service. Many of the officers, both 

 of the Array and the Navy, delight to gratify their friends 

 at home, by transmitting the products of their researches 

 abroad. Hence it results that specimens are aggregated, oft 

 the spot, in greater abundance than they could be, by the 

 most laborious journeys and extensive voyages, of any in- 

 dividual. 



Among the praiseworthy contributors, to the stock of our 

 knowledge, in Natural History, we mention, with pleasure. 

 Captain C. G. Ridgely of the U. S. Pvavy, who, 

 on his late return from the Pacifick Ocean in the Constel- 

 lation., brought as usual, his offering to science ; consist- 

 ing of a number' of small marine animals, found attached to 

 the rocks, and collected by himself, on the coast of upper 

 Peru. The specimens, preserved in spirits, were presen- 



