FOSSIL ECHINOIDS OF JAPAN. S 



same genus in the Tertiary of Formosa (north of Katö near Sue) 

 and in the Pliocene of Yokohama. 



JEchinolampas, which in our country is represented by a single 

 living species E. oviformis Gmel., has one interesting fossil species, 

 E. yoshiwarai P. de Loriol, collected in the Pliocene of Kanaya 

 in Kazusa together with several reef corals. 



The wide-spread genus Salenia has also one fossil representative 

 in our country which was described by P. de Loriol as Salenia 

 ( Pleur osalenia) hakkaidoensis. 



Echinarachnius mirabilis Barn, a very common living 

 echinoid in Japan, was living in the Diluvial time in Hitachi, 

 Shimösa and in the environs of Tokyo. Echinarachnius parma 

 Lam., which is said to be living in Japan (locality uncertain), 

 is found in the JNeogene Tertiary of Australia as well as in that 

 of Etchu, Echigo and Sado. 



As to the genus Laganum, L. decay onalis Less, is widely 

 distributed in the fossil form in several countries, such as Japan 

 (Diluvium), Java (Miocene) and Australia (Eocene). L.fudsiyama 

 Död., which is now living in the Sagami Sea, has been collected 

 by me in the Pliocene of Sagami. 



Clypeasler ledit udi no rius Gray has been found in the Miocene 

 of Java, in the Tertiary of Australia and in the Diluvium of 

 Loochoo and Tokuno-shima ; Brissopsis luzonica Gray, in the 

 Miocene of Java and the Neogene Tertiary of Iwaki ; and 

 Temnopleurus toreumaticus Klein, in the Miocene of Java and 

 the Diluvium of Oji and Shinagawa. Lastly, indeterminable speci- 

 mens of Slrongylocenlrotus have been collected from the Pliocene 

 beds of Izu and Sagami. 



