GASTEROPODA CYCLOBRANCHIATA. 389 



contorted. The ovary is situated over the other viscera, and appears 

 to open on the sides by two oviducts. 



A few small species are found on the coast of France; very 

 large ones abound in the seas of hot climate3(l). 



(1) The Chitonelli of Lamarck, and all the species of Chiton of authors, should 

 be left in this genus, of which M. de Blainville has thought proper to make a se- 

 parate class, called Polypiaxiphoka, supposing that it leads to the Articulated 

 Animals. 



I 



