8 ART. 12. — S. TOKUNAGA : ON THE 



A. Agassiz, Report on the Results of Dredging etc. — Bull. 

 Mus. Comp. Zool. Harvard Coll., Vol. V., 1878, and 

 Vol. VIII., 1880. 

 K. Martin, Die Tertiärschichten auf Java, 1879-80. 

 P. M. Duncan, A Revision of the Echinoidea from the 

 Australian. Tertiaries. — Quart, dour. Geol. Soc. London, 

 XLIIL, 1887, p. 411. 

 L. Döderlein, Seeigel von Japan und den Liukiu-Inseln. — 



Archiv, f. Naturg., I. Bd., 51 Jahr., 1885, p. 73. 

 F. J. Bell, On the Echinoderms collected during the Voyage 

 of H. M. S. Penguin etc.— Proc. Zool. Soc. London, 1894. 

 R. Kœhler, Catalogue raisonné des Echinodermes etc. — 

 Mem. Soc. Zool. France ; Tome VIII., 1895, p. 374. 

 Localities : — 



Unten in Okinawa Is., Loochoo (Diluvium) (coll. S. Toku- 

 naga) ; Ishigaki-jima in Loochoo (Diluvium) (coll. S. Tokunaga) ; 

 Java (Miocene) (described by K. Martin) ; Lindenow, Mitchell 

 river in Australia (Tertiary) (described by P. M. Duncan). 



Found living in the following places : Hakodate (coll Dall); 

 Japan (Bonn Museum) ; New Holland ; Red Sea ; la Paz ; 

 Sandwich Is.; off Twofold Bay in Australia ; off entrance to 

 Port Philip in Australia ; Gulf of California. 



LAGANUM DECAGONALIS (Less). 



Synonyms : Sculella deeagonalis Less. 

 Legana decagona Less. 

 Rumphia lesueuri A. Ac 

 Polygastcr elegans Mich. 



