Fossils from the Upper Musashino of Kazusa and Shimosa. 



13 



fcfl 



œ 



M 



232. Venus (Mercenaria) 

 stimpsoni GUI. 



233. Venus jedoensis Lke. 



234. Venus neastartoides Yok 



235. Cliione isabellina Phil. + + 



236. Chione mindanensis Sm. 



237. Venerupis semipurpurea 

 Dkr. 



238. Tapes euglyptus Phil. 



239. Tapes philippinanim Ad. 

 et Rve. 



240. Tap s variegatus Hani. 



241. Saxidomus purpuratus 

 Sow. 



Family Cardiidae. 



242. Cardium butchardi Dkr. 



243. Cardium californiense 

 Desh. 



244. Cardium mutic-um Rve. 



+ + + 



+ . . . . + + . . 

 + .. + + + + 



+ 



LIVING 



+ + + 



+ + + 



345. Cardium modestum Ad. 

 et Eve. 



246. Cardium braunsi Tok. 



247. Cardium tokunagai Yok. 

 Family Leptonidae. 



248. Montacuta japonica Yok 



249. Montacuta oblongata Yok 



250. Montacuta yamakawai 

 Yok. 



251. Thyasira trigonata Yok. 



Family Dtplodontidae. 



252. Diplodonta usta Gld. 



253. Diplodonta japonica Phil. 



254. Diplodonta semiaspera 

 Phil. 



FamUy Luchiidae. 



255. Luoina pisidium Dkr. 



256. Lucina borealis L. 



257. Lucina contraria Dkr. 



+ • . 

 + + 



+ + 



+ + 



+ + 

 + . . 



+ . 



+ . 



Northern to Western Japan. 



Northern, Central and "Western 

 Japan. 



Central Japan. 



Japan (Dunker), China Sea. 



Philippines (in depth of 52 



fathoms). 

 Northern to Western Japan. 



Central and Western Japan. 



North, to West. Japan, Philip- 

 pines. 



Central and Western Japan. 

 PhilippentrS. 



North, to West. Japan, Benin I. 

 Sitka to California, Chile. 



Central and Western Japan. 



North, to West. Japan, Behring 

 Sea. British Columbia. Cali- 

 fornia. 



Northern to Western Japan. 

 Philippines, East Indits. 



Central Japan. 



Central Japan. 



+ + 



+ + 

 + . . 

 . . + 



+ 



+ + 



. . + 

 + + 



. . + 



Northern and Central Japan. 

 Central Japan. 



Centr. and West. Japan, Mazat- 

 lan. West Indies, Patagonia. 



North, to South. Japan. New 

 South Wales. 



Centr. Japan. Iceland to Medi- 

 terranean. (Miocene to Glacial 

 of Europe). 



Central Japan. 



