14 



II. Familie Ischnochitonidae. 

 i . Subfamilie Ischnochitoninae Pilsbry. 



Schizoplax Dall. 

 *i. Schizoplax brandti Middend. 



H. A. Pilsbry. Man. XIV, Pag. 47. 

 Ochotskisches Meer, Aleuten. 



Tonicella Carpenter. 

 *i. Tonicella marmorea Fabr. 



H. A. Pilsbry. Man. XIV, Pag. 41. 

 Nord Pacifik; Japan, Aleuten. 



*2. Tonicella submarmorea Middend. 

 H. A. Pilsbry. Man. XIV, Pag. 42. 

 Japan, Ochotskisches Meer, Aleuten. 



*3- Tonicella lincata Wood. 



H. A. Pilsbry. Man. XIV, Pag. 42. 

 Ochotskisches Meer, Japan, Californien, Aleuten. 



*4. Tonicella saccharina Dall. 



H. A. Pilsbry. Man. XIV, Pag. 44; XV, Pag. 66. 



Aleuten, Shumagin-lnseln; Kyska, Unalaschka, Koniushi. 

 St.-Paul, Pribiloff-Inseln. 



*5. Tonicella sitkensis Middend. 



H. A. Pilsbry. Man. XIV, Pag. 44. 

 Sitka. 



Trachydermon Carpenter. 



1 . Subgenus Trachydermon s. str. 



*i. Trachydermon solidior Carp. 



H. A. Pilsbry. Man. XIV, Pag. 76. 

 Philippinen. 



