72 Art. 1. — M. Yokoyama : 



Fossil occurrence. — Otake (rather frequent). Tal>ata. Lower 

 Musashino of Yokosuka. 



Living. — Central and Western Japan. Philippines. Indian 

 Ocean. 



fSO. PotutÊiides (H(tiillari(i) xonalitt, Bruguiere. 



Potamides {BatiUaria) zoiialis. Pilsbry, Catalogue, p. 67. 



Potamides {Lampania) zonalis. Tryoii, Man. Cotich. IX, p. 167, pi. 34, tigs. 3, 4, pi. 35. 



fig. 14. Tokunaga, Foss. Env. Tokyo, p. 25. 

 Lamßania zonalis. Liscke, Jap. Meeresconcli., I, p. 73, pi. YI, figs. 15, 16, II, p. 69. 



Danker, Iml. Moll., p. 109. 



Like the living shell described by Lischke, the fossil one too 

 has longitudinally plicate and spirally striate whorls. The longi- 

 tudinal plicae which number eleven on the penultimate whorl are 

 somewhat oblique and are usually severed into two, sometimes into 

 three, tubercles by spiral grooves. The peristome is continuous 

 except at the anterior end where it is cut l)y a deep canal. The 

 outer lip is markedly produced near this canal. 



Several examples, though more or less broken. 



Fossil occurrence. — Otake, Kamenari. Oji and Tal)ata. 



Living. — Northern, Central and \\'estern Japan. Hongkong. 

 Australia. 



90. PotainitleH [Hat ill at' ia) ttntftifortnis, (Lischke.) 



Putainides {Batillaria) miiltifuniiis. Pilsbry, Catalogue, p. 57. Yokoyama, Foss. Miura 



Peniu., p. 69, pi. lY, fig. 9. 

 Lampania )iiuUifonnis. Lischke, Jajx Meeresconcli., I, p. 74, pi. YII, figs. 1-10, II, p. 



69. Dunker lad. Moll , p. 109. Tryou, Man. Conch., IX, p. 167, pi. 35, fig. 13, pi 



34, fig. 6, 8. 

 Lampania zonalis. Brauns, Geol, Env. Tokio, p. 52, pi. II, fig. 12. (non L. zonalis 



Brug.). 



The typical form of this shell is characterized by its short 

 shape, a specimen from Kamenari being such a one. Among those 

 from Semata, however, there are also more slender forms whicii 

 may be considered as a variet}'. 



What Brauns described as Lam])anla zonalk from Surugadai, 

 Tokyo is evidently this variety, his figure clearly showing it. 



