48 JAPANESE MOLLU8K8, CA88IDID.K. 



Gyrineum cruentatum Sowb. Japan (Stearns). 

 Gyrineum ranelloides Rve. C. Icon., f. 10. 



Kiusiu (Lischke). Tryon considers this a synonym of cruentata. 



Gyrineum tuberculatum Brod. Japan (Dkr.). 

 Gyrineum lamellosum Dkr. Japan (Dkr.). 

 Gyrineum (Biplex) perca Perry (pulchra Gray). 



Inland Sea (Stearns ; 33 specimens) ; Kiusiu (Lischke). 



CASSIDIDJE. 



Cassis oornuta Linne". Nagasaki (Lischke). 

 Cassis rufa Linne". C. Icon., pi. 8, f. 20a. 



Nagasaki (Lischke). 



Cassis pila Reeve. Rv., Conch. Icon., V, f. 21. 



Japan (Stearns) ; Nagasaki (Lischke). 



Cassis japonica Reeve. Rr., Conch. Icon., f. 23 a, b. 



Japan (Stearns) ; Nagasaki (Lischke) ; Tatiyama, Tsusaki (A. 

 Ad.). 



This form differs from C. pila in having the upper surface and 

 spire densely granulated. It is typically without varices. Some 

 specimens lack the rows of brown blotches. 



Cassis coronulata Sowb. C. Icon., f. 31. 



Nagasaki (Lischke) ; Ooshima, Kii (Stearns). 



Cassis strigata Gmel. Rve., Conch. Icon., V, f. 26. 



Sagami Coast (Stearns, 25 specimens) ; Bay of Yedo (Lischke) ; 

 Mososeki, Seto-Uchi (A. Ad.). 



The specimens agree exactly with Keeves' beautiful figure, except 

 that the inner lip exhibits some short callous wrinkles above. 



Cassis strigata Gmel. var. Japan (Stearns). 



Several shells before me differ from the type in being smaller, and 

 having spiral grooves over the entire body-whorl. One of them 

 lacks varices ; two others have each a single varix near the begin- 

 ning of the body-whorl. 



Cassis vibex Linne. Japan (Dkr.) ; east coast (Stearns). 

 Cassis pirum Lam. C. Icon., f. 29 (zeylanica Lam.). 

 Japan (Dkr.). 



