ANATOMY, PHYSIOLOGY, ETC. 
Moll. 31 
Fam. Acanthochitidas (nov.). 
Genus Spongiochilon. 
Genus Acanthochites. 
Genus ? Leptoplax . 
Genus Katharina. 
Genus Amicula. 
Genus Cryptochiton. 
Fam. CHYPTOPLACIDiE, 
Genus Cryptoplax. 
Genus Choneplax. 
III. Superfam. TELEOPLACOPHORA. 
Fam. Chitonid^e. 
Subfam. Chitonince (nov.). 
Genus Chiton. 
Genus Eudoxochiton. 
Subfam. Toniciince (nov.). 
Genus Tonicia. 
Genus Acanthopleura. 
Subfam. Liolophurince (nov.). 
Genus Schizochiton. 
Genus Lorica. 
Genus Enoplochiton. 
Genus Onithochiton. 
Genus Liolophura (nov.). 
Pilsbry further gives the following diagram of the phylogenetic 
relationship of the families and subfamilies : — 
i 
Callistoplacince. 
Lepidopleuridcc. 
besides other diagrams of the genera, Ischnochitonince , Chitonidce, and 
Acanthochitidce. 
1893. [vol. xxx.] 
c 14 
Mopaliidce. 
