650 PROCEEDINGS OF THE ACADEMY OF [Dec., 



C. PERIGNOBILIS Pils. Okinoshima, Tosa; Dogo, lyo. 

 C. KOCHIENSIS Pils. Kochi, Tosa; Minamata and Yatsushiro, 

 Higo ; Togo, Satsuma. ( C. higoensis Pils. is a synonym. ) 

 C. SUBAURANTIACA Pils. Deyai and Toyonishihami, Nagato. 

 C. ISCHNA Pils. Kochi, Tosa, Shikoku Island. 



Var. NEPTIS Pils. Kochi, Tosa. 

 C. IGNOBILIS Sykes. Kinnayama, Shikoku. 

 C. SHIKOKUENSIS Pils. Ushirohawa, Tosa, Tairiuji, Awa, and 



Nametoko, lyo, Shikoku Island. 

 C. STRICTALTJNA Bttg. Nagasaki (Lischke). 



Var. MAJOR Bttg. Seluchi, between Hiuga and Bugo (Rein). 



Var. NANA Mlldff. Nagasaki. 



Group of C. aulacophora. 



C. AULACOPHORA Pils. Fukura, Awaji (C. breviluna Mlldff. ). 

 C. PIGRA Pils. Kashima, Harima (Hirase). 



Group of C. platyauchen. 



C. PLATYAUCHEN v. Mart. (C. fusangensis Mlldff.). Tsukuba- 

 san, a mountain north of Tokyo (Hilgendorf, type local- 

 ity) ; Lake Chusenji (Schmacker) ; Nishigo, Uzen; 

 Mikuriya, Suruga (Hirase) ; Prov. Suruga (F. Stearns); 

 Prov. Yamato (Rein). 



C. ATTRITA Bttg. Japan (Rsin) ; Ibuki, Omi, and Kiyomi- 



mura, Hida (Hirase). 



Var. INFAUSTA Pils Nachi, Ikoma, and Jo, Prov. Kii 

 (Hirase). 4 



C. HAKONENSIS Pils. Hakone Mountains (B. Schmacker); 

 Oshima, Izu (Hirase). 



C. SCHMACKERI Sykes. Kinnayama (Sykes) ; Kochi, Tosa 

 (Hirase); Shikoku Island. 



C. BUSCHII Kiister. Japan (Siebold). Position uncertain. 



C. PLATYDERA v. Mart. Kobe (Schmacker); Prov. Yamato, at 

 Gose, Matsunotoge, Kambe and Nara, and Hieisan, west 

 of Lake Biwa (A. Gulick!). 

 Var. LAMBDA Bttg. Japan (Rein); Nohara, Yamato (Hirase). 



* Somewhat smaller than attrita ; the subcolumellar lamella immersed, 

 inferior lamella continued inward decidedly farther than the spiral ]amella. 

 Other characters substantially as in attrita. 



