Extracts from the Minute-Book of the Linnean Society. 481 



company with Chitons and noticed to be of locomotive habits ; the 

 Chitonellus seeking retirement in a hole oi' cavity, but cravi^ling- away 

 from its attachment on being disturbed, at about the pace of the 

 common garden snail. 



For these reasons, although Mr. Reeve does not regard the other 

 subdivisions proposed in the genus Chiton as of greater value than 

 sectional, he considers Chitonellus as entitled to rank equally with 

 Chiton in its most extended form, being in his opinion clearly distin- 

 guished both in structure (as regards the condition of the mantle 

 and its system of ealcitication) and in habit. 



3 r2 



