114 JAPANESE MOLLU8KS, POLYPLACOPHORA. 



Tonioella lineata Wood. Pilsbry, Man. Conch., XIV, p. 42. 

 Northern Japan. 



Trachydermon (Spongioradsia) multidentatus Cpr. Pilsbry, Man. Conch., XIV, 

 p. 85 ; XV, p. 



Bonin Is. (N. P. E. K). 



Ischnochiton (Stenoradsia) lindholmi Schrenck. Schr., Reisen im Ainurlande, II, 

 p. 288, pi. 12, f. 9-16 ; Pils., Man., XIV, p. 85. 



Bay of Hakodate (Schr.). 

 I have not seen this species. 



Ischnochiton comptus Gould. Pile., Man. Conch., XIV, p. 117. 



Ooshima, Bonin and Liukiu Is. (Stirap.). 



Ischnochiton (Lepidozona) mertensi Midd. Pils., Man. XIV, p. 125. 



Reported from Hakodate by Dkr., Index, p. 158. 



Ischnochiton (Lepidozona) coreanicus Adams A Reeve. A. A R., Voy. Samarang, 

 pi. 15, f. 9; Pils., Man. Conch., XIV, p. 129. 



Corean Archipelago, under stones (Ad.) ; Bay of Hakodate 

 (Schrenck). 



Ischnochiton (Lepidozona) craticmlatus Gould. Pils., Man. Conch., XV, p. 84 

 pi. 17, f. 62, 63. 



China Seas or Japan. (N. P. E. E.). 



Type is in U. S. Nat. Museum. 

 Ischnochiton cultratus Carpenter. Pils., Man. Conch., XV, p. 82, pi. 17, f. 57-59. 



Hakodate (N. P. E. E.). 

 Type is in U. S. Nat. Museum. 



Ischnochiton (Isohnoradsia) hakodadensis Carpenter. Pils., Man. Conch., XIV, 

 p. 147, pi. 19, f. 64-66. 



Hakodate (N. P. E. E.). 

 Type is in Mus. Phila. Acad. 



Ischnoohiton (Isohnoradsia) albrechti Schrenck. Pils., Man. Conch., XIV, p. 147, 

 pi. 19, f. 70-74. Lepidoradia granojiloaa Cpr. 



Hakodate (Schreuck) ; Endermo Harbor (St. John, Smith). 



Callistochiton jacobaeus Gould. Pils., Man. Conch., XIV, p. 267. 

 Simoda (N. P. E. E.). 



Nuttallina alternata Sowerby. Pils., Man. Conch., XIV, p. 281. 

 Japan (Cuming). 



