Fossils from the Upper Musashino of Kazusa and Shimosa. 155' 



Meeresconch., I, p. 144. Biauus, Geol. Eiiv. Tokio, p. 42. Tokunaga, Foss. Env. 



Tokyo, p. 50, pi. Ill, fig. 10. Dunker, Ind. Moll., p. 212. Pilsbiy, Catalogue, p.. 



131. Yokoyama, Foss. Miura Peniu., p. 128, pi, IX, fig. 11. 

 Cardium japonicum. Dunker, Moll. Jap., p. 28, pi. Ill, fig. 16. 

 Cardiwn papyracemn. Eönier in Syst. Concli. Cab., X, pt. 2, p. 78, pi. Ill, fig. 4, pi. 



XII, figs. 19, 20. 



The figured specimen is a large riglit valve 83. 5 millim. in 

 length and 72.5 millim. in height. 



Fossil occurrence. — Otake (common), Shisui, Kamenari, 

 Tega (frequent). Oji and Shinagawa. Lower Musashino of Miya- 

 ta, Yokosaka and Naganuma. 



Living. — Northern, Central and Western Japan. Pliilippines. 

 East Indies. 



245. Cartliuni tnoflesfnni, Adams et Reeve. 



Cardium. rnodeatum. Adams and Reeve, Toy. Samarang, Zoology, p. 77, pi. XXII, 

 fig. G. Dunker, Ind. Moll., p. 211. Pilsbry, Catal., p. 131. Yokoyama, Foss. 

 Miura Penin., p. 128, pi. IX, figs. 12, 13. 



This shell frequent in the Lower ]\Iusas]iino of Koshiba is 

 rare in the Upper. 



Living. — Central Japan. 



246. Cavtlitttn braunsi, Tokunaga. 



PL XIII. Fig. 2. 



Cardium branmi. Tokunaga, Foss. Env. Tokyo, p. 51, pi. Ill, fig, 11, Yokoyama, 

 Foss. Miura Penin., p. 129, pi. X, fig. 1. 



That this species is akin to Cm'dium tuberculatum L. and 

 Cardium nidtali Reeve has already been mentioned in my work 

 above cited. The specimens which are rather rare are more or 

 less decorticated on the surface. The largest specimen obtained 

 is a right valve measuring about 91 millin]. in length and height, 

 and 34 millim. in depth. The ribs number twenty-four on an aver- 

 age and are made crenate near the ventral margin by rude lines of 

 growth, a character which brings the species closer to the species 

 of Reeve as well as of Linné. 



Fossil occurrence. — Otake. Tega. Shito. Oji in Musashi.. 

 Lower Musashino uf ]\livata. 



