V f ^APAN^^MOLLUSKS, CYCLOSTREMATID^E. 



Umbonium japonicum Sulliotti. Pilsbry, Man. Conch., XI, p. 456. 



Sea of Japan (Sul.). 



Will prove a synonym of U. moniliferum or superbum. Sowerby 

 (Thes., V, p. 472) reports U. suturalis Lam. from Japan ; and A. 

 Adams reports vestiarium Linn. 



Umbonium moniliferum Lamarck. Pilsbry, Man. Conch., XI, p. 456, pi. 58, f. 22- 

 31. 



Kishiu, Kamakura (Stearns) ; Nagasaki, Simoda, O-Shima (Dkr.). 



Three color varieties collected : 



(1). White, with some faint or obsolete tessellation; callus white 

 or light. (Kishiu). 



(2). Yellow, with light olive tessellation ; callus pink or dusky. 



(3). Ground color buff or white, with wide red stripes, sometimes 

 reducing the light ground to mere spots ; base with broad oblique 

 stripes, or a subperipheral red girdle. (Kamakura). 



Umbonium thomasi Crosse. Pilsbry, Man. Conch., XI, p. 453, pi. 57, f. 31, 32. 

 RoteUa infraplanata Sowerby. 



Hakodate. 



Umbonium adamsi Dunker. Dkr., Index, p. 135, pi. 6, f. 3-5. 



Japan (Dkr.). Is this more than a variety of U. thomasi f 



CYCL08TREMATID.S. 



Cyclostrema anaglyptum A. Ad. Man. Conch., Vol. X, p. 88, pi. 31, f. 15, 16. 



Seto-Uchi (Adams). 



Cyclostrema pulchella Dkr. Moll. Jap., p. 20, pi. 3, f. 5. 



Tokyo (Stearns) ; Bay of Yedo (Lischke) ; Inland Sea (A. Ad.), 

 Tryon unites this with C. micans A. Ad. 



Cyclostrema ammonooeras A. Ad. Man. Conch., Vol. X, p. 89, pi. 31, f. 34, 35. 

 Japan (Adams). 



Cyclostrema dunkeri Tryon. Man. Conch., X, p. 91, pi. 32, f. 48, 49. C. cingulatum 

 Dkr. not Phil.; Moll. Jap., p. 20, pi. 3, f. 11. 



Deshima (Dkr.) ; Tokyo Harbor (Stearns). 

 Cyclostrema biporcatum A. Ad. Conch. Icon., Vol. 19, pi. 1, f. 7 a, b. 



Seto-Uchi (Adams). 

 Cyclostrema Isevis Keiner. Sp. et Icon. Coq. Viv., Delphinula, pi. 4. f. 6. 



Japan. 



C. duplicata Lischke. Jap. Meeres-Conch., Ill, p. 61, pi. 3, f. 9. 



Yedo (Lischke). 



