Fossils from the Upper Miisashino of Kaziisa and Shimosa. ] 53 



240. Tapes varieyatns, Haiiley. 



Taj)es vanegatus. Sowerby, Thes. Concli., II, p. G90, pi. 151, figs. 133-138. Lisclike, 

 Jap. Meeresconch., I, p. 118, II, p. 108, III, p. 79. Dunker, Incl. Moll., p. 209. 

 Pilsbry, Cat., p. 130. Yokoyama, Foss. Miura Penin., p. 125, pi. IX, figs. 4,5. 



Very frequent at some localities. 



This species is distinguished from the foregoing by its longer 

 and less inflated shell, The radiating riblets of the surface are 

 similar in both. The size attained by fossil specimens is moderate. 

 The largest left valve is 52.5 millim. long, 35.3 millim. high and 

 12.5 millim. deep. 



Fossil occurrence. — Otake (very frequent), Tega (do), Kioro- 

 shi, Kamenari, Shisui. Lower ]\Iusashino of Miyata. 



Living. — Central and Western Japan. Philippines. 



Genus SAXIOO^flUS, Conrad. 



241. Saacitlotnits puriturafus, (Sowerby). 

 PI. Xn. Fig. 9. 



Sacoidomus jpurpuratus. Desliayes in Cat. Conch. Brit. Mus., p. 138. Lisclike, Jap. 



Meeresconch., vol. I, p. 127. Dunker, Ind. Moll,, p. 206. Brauns, Geol. Env. 



Tokio, p. 40, pi. V, fig. 20. Yokoyama, Foss. Miura Penin., p. 127, pi. IX, fig. 8. 

 Saxidomus nuttali. Conrad, Jour. Acad. Sei., Phil , 1887, VII, p. 249, pi. XX, fig. 12. 



Schrenck, Moll. Amurl. u. d. nordjap. Meeres, p. 253. Tokunaga, Foss. Env. 



Tokyo, p. 45. 



Several splendid examples from several localities. 



Fossil occurrence. — Otake, Shisui, Kioroshi, Shito. Oji and 

 Shinagawa in Musashi. Lower Musashino of Yokosuka. 



Living. — Northern, Central and Western Japan. Ogasawara- 

 jima or Bonin Islands. Indian Ocean. Sitka, California, Chile. 



Family Cardiidae. 



Genus CARDIUM, Linné. 

 242. Cardium hurehtirdi, Dunker. 



PI. XII. Pig. 3. 



■Cardium hurchurdi. Dunker, Ind. Moll., p. 210, pi. XVIII, figs. 4-6. Pilsbry, Catalogue, 

 p. 131. 



