24 •^'■^- 1- — ^I- Vokoyama : 



the direction of the striae coinciding with that of incremental hnes. 

 The outer Up is thin and sulcate within. The margin is crenulate. 



Fossil occurrence : — Fréquentât Shito, rarer at Otake. Also 

 found at Oji and Shinagawa in Musashi. 



Living. — Japan (Dunker). 



Family Tornatinidae 



Geiiur TOKNATIXA, A. Adams. 



4. Tornafina eocilis, Dunker. 



PI. I. Fig. 4. 



Torudtina e.vilis. Danker, Moll. Jap., p. 25, pi. II, fig. 14. Pilsbry, Cut. Mar. Moll. 

 Jap., p. 7. Tryoij, Man. Concli., XV, p. 190, pi, XXII, tig. 25. Tokuuaga, Foss. 

 Env. Tokyo, p. 31, pi. II, tig. 9. Brauns, Geol. Env. Tokio, p. 34. Yaraakawa, 

 Foss. Opisthobr. Diluv. Depos. Japan. (Journ. Geol. Soc Tokyo, vol. XYIII) 

 p. 40, pi. X, figs. 4-7. 



Tliis small sliell has already been figured hy Tokunaga and 

 Yamakawa in the works above cited, the latter giving, morover, a 

 full description of it. 



Fossil occurrence. — Very frequent at Otake, rarer at Shisui, 

 Tega and Shito. Also found at Oji and Shinagawa in Musashi. 



Living. — Western Japan. 



O' Tornatina longisirirata, Yamakawa. 



PI. I. Fig. 5. 



Tornatina longispirata. Yamakawa, Foss. Opisthobr. Dil. Dep. Jap. (Joi\r. Geol. Soc, 



Tokyo, vol, XVIIl), p. 41, pi. X, figs. 8, 9, 10. 

 Tornatina longispirata oar. otakensis. Yamakawa, loc. cit., p. 42, pi. X, figs. 11, 12, 13. 



A full description of this species is found in the work of 

 Yamakawa who distinguished a typical form and a variety, the 

 former having five whorls and the latter four. Besides, he says 

 that the spire in the variety is more pointed, whicli seems to be a 

 mistake for te- pointed. Anyhow I deem the separation unneces- 

 sary. 



Fossil occurrence. — Rarely found at Otake and Tega. 



