JAPANESE MOLLUSKS, CERITHIOPSID^. 57 



3ittium soalatum Dkr. Index, p. 108. 

 Japan (Dkr.). 



Bittium oosimense Watson. Challenger Gastrop. XV, p. 548, pi. XXXIX, f. 1. 



Ooshitna (Cliall.). Must be somewhat like the preceding. 



Totamides (Telescopium) telesoopium Linne. Japan (Stearns, one poor specimen). 

 Potamides (Tympanotonos) fluviatilis P. & M. Nagasaki (Lischke) ; Japan 



(Stearns). 



Potamides (Batillaria) zonalis Brug. Lischke., J. M. C, I, pi. 6, f. 15, 16. 



Tokyo Harbor (Stearns); Ooshima (St. John); Nagasaki (Lischke); 

 Yokohama (Martens). 



The following forms are closely allied. 



Potamides (Batillaria) cumingi Crosse. Lampania cumingi Crosse, J. de C, 

 1802, p. 54, pi. 1, f. 10, 11 : J. M. C, I, pi. 6, f. 11-14. 



Tokyo Harbor; Baiida, Boshiu (Stearns) ; Hakodate (Schreuck) 

 Potamides (Batillaria) multiformis Lischke. J. M. C, I, pi. 6, f. 1-10. 



Tokyo Harbor (Stearns). 



The specimens correspond best with Lischke's figs. 7, 8, but are 

 white-handed at suture. 

 Potamides (Batillaria) aterrima Dkr. Index, p. 109, pi. 5, f. 7, 8. 



Japan (Dkr.). Hardly distinct from the preceding. In fact all 

 the above forms of the P. zonalis group should probably be consid- 

 ered varieties of that species. Mr. R. B. Newton has shown that 

 Batillaria Bens, should replace Lavipania Gray as a subgeneric 

 name for these forms. 



CERITHIOPSID.a:. 

 Cerithiopsis subreticulata Dkr. Moll. Jap., p. 9, pi. 2, f. 10. 



Deshima (Dkr.). 



Cerithiopsis rosea A. Ad. Ann. Mag. X. H. (3), VII, 1861, p. 130. 



Tsu-Shima, 16 fms. (Ad.). 

 Cerithiopsis cerina, baculum, olavula A. Ad. Ibid. 



MinoShima, 63 fms. (Ad.). 

 -Cerithiopsis paxillus, pagodula A. Ad. t. c, p. 131. 



Corea Strait, 46 fms. (Ad.). 

 Sella dextroversa Ad. & Rve. Zool. Samarang, p. 45, pi. 11, f. 31. 



Tsu-Shima, 16 fms.; Corea Strait, 46 fms. (Ad.). 

 Sella cingulata A. Ad. Ann. Mag., VII, 1861, p. 131. 



Tsu-Shima, 16 fms. (Ad.). 



