26 ART. 12. S. TOKUNAGA I ON THE 



PSEUDOCIDARIS ß sp. 



PL II. Fig. 12. 



Literature consulted : — 



E. Naumann und M. Neumayr Zur Geologie und Palä- 

 ontologie von Japan. — Denk. Mathem. -Natur w. Classe 

 Kaiser. Akad. der Wissenschaften, Bd. LVIL, 1890. 



Spine 19mm. long and 11.5 mm. in greatest diameter, club- 

 shaped, acuminated near apex and narrowed near the base, very 

 finely striated longitudinally ; each striation closely granulated, 

 the granules being larger and coarser near the apex. 



This specimen was collected from the same locality as the 

 preceding one, and probably belongs to the same species which 

 E. Naumann and M. Neumayr named Oidaris cfr. glandifera 



GOLDF. 



CIDARIS ß sp. 



PL II. Fig. 8. 



A spine 25 mm. long and 13.5 mm. in greatest diameter, 

 rather cuneiform, the greatest diameter lying nearer the summit 

 than in the preceding species (Pseudocidaris <>■ sp. and ß sp.), 

 narrowed near the base ; striations and granulations similar to 

 the above. 

 Locality : — 



Tarusawa near Ttsukaichi, Prov. of Musashi (Jurassic or 

 Cretaceous). 



