3^ 



Gen. Caecella Gray. 



15 m ^ M 



Caecella cbinensis Desk. < tj^^'/j^^ (g) 



Azamushi, Mutsu (6391). ^Il'^^fe 



Ishinomaki, Rikuzen (6230). ^'HU^>'^ 



Fukura, Awaji (6129). ^^fl^ 



Kashiwajima, Tosa (6310). ."h'^tfl^ 



Kagoshima, Satsuma (1348). |^j^|^5i^ 



Gen. Trestts Gray. 



u vt "%. m 



Tresus nuttallt Conrad. ^^ {lA C^Ji) 



Yokosuka, Sagami (1344). i=i1^-MM^ 



Pam. II. PSAMMOBIIDAE. 

 Gen. Psammobia Lafn. 



^ m w R m 



Psammobia elongata Lam. ^^li^^'6^ C^JS) 



Niidahama, Tosa (1351)- iteti^H-^ 



Yaeyamajima (1352). ASUJ^ 



P. ornata Desk. X L^^'W C@) 



Awaji (4519)- ^^ 



Fukura, Do. (6128). MM^ 



Hirato, Hizen (6283). HEfJ^J^ 



P. coernlescens Lam. ^K'^.'tlf Cf$aa) 



? (6591)- mm^m 



p. anomala Bes/t. 5 i* < IC ^ "f" l^ C^) 



