76 



NOKTIIKUX LOCALITIKS. 



Simllur ro.-ks have bucn bro;iglit from Rikiij^cii. ii litlk- NE. of Bendui, con- 

 taining IV'cten plic-a L., l)osiiii.i oxolotii L., l'aiio|«iM t^i-nuroMi (ionld ntiil 

 Siixiciiva arctiea L: wliilst at Hako(btu not only similar r«).ks Imvc bcvn bcc-u, 

 but also smaller uixl well prcsorvud fossil hIioIIs, niiicli like those of Oji or 

 Sliinaguwo, have been droilgcd. Tiic most im|>ortiint uf them is Limo|>Kiii aiiritu 

 Brocchi, of which a few sptvimens, doiihtlcssly in a fiissil stale, are in the zoo- 

 logical collections of the Daigakii. 



Another locality is situated lietwcen Sondai and Ilidaehi. in the province of 

 Yiiwashirö. The pliocene rooks, gi-oenish tufaceous saiidstoueH, have been found 

 in tunnelling through a mngc of low hills soiitii of Yuwahhirö-su (Manaita-nawa, 

 Asakagori). Here Cardium muticum Reeve, large and typiud, Lucina borealia 

 Ii., Mactra veneriformis Desh , Telliua nasiita Conr., I'ecten luqu&itr.» Sow ami 

 stems and leaves of plants (Cryptonieria jajioiiica, and a Carpinus) are foun<l. — 



The tertiary bcd.s beyond the Tokio plain, in their totality, have fiirnUhcil 

 CO species, 4G of which arc also coritjiined in the Tokio- and Yokohama-Iayoni, 

 and only l4 (about 23 percent) are new; but these are all recent and with two 

 exceptions Jaiianesc. Only one of them docs not occur in the Pacilic. 



The different localities do not differ much in their proportion, Oiiehibu 

 having 20 species with 2 new one«, Shh)shiu 19 with two new oncji, Wino 31 

 with 4 new spceies; Ilidachi with SO K|)eeies has, however, 14 new ones, whilst 

 the other localities in which only a few sjM-'cies are found, have no new one«. 

 The largest number of new tpecies, therefore, belongs to Hidachi, where the 

 ' face' of the formation is alfo rnodilied. The modification, however, and tlie 

 number of new forms is not very great, and the character of the fauna, in it< 

 totality, is not altered. 



