Fossils from the Upper Miisashiiio of Kaznsa and Shiuiosa. \05 



numerous (over tliirty ou the bocly-whoii), weak, obtuse, Üexuous, 

 oblique, wider than interspaces, very indistinct on the last part of 

 the body-wliorl, united a httle above the lower suture by a spii'al 

 thread followed below by a suprasutm-al spiral one. Just above 

 the upper thread there is a faint impressed spiral line crossing the 

 costellge. Intervals between costellse furnished with very fine spiral 

 striations intersecting growth-lines. Periphery obtusely angulate. 

 Base convex, with fine spiral line cutting those of growth. Umbilicus 

 with a small chink. Aperture ovate, somewhat pointed behind, 

 produced and rounded in front. Inner lip bent in the middle at a 

 very broad angle. Outer lip thin. Height 8 millim. Diameter 

 2. 5 millim. 



Fossil occurrence. — Rarely at Otake. 



Living. — Central Japan. 



153. Turhonilla (StriofiirhoniUa) iKieiflea, Yokoyaiua. 



PI. V. Fig. 13. 



Shell small, elongate-conic. Nuclear whorls standing on edge 

 at the summit. Post-nuclear whorls eight, somewhat convex, 

 longitudinally costellate. Costellse flatly rounded, very slightly 

 curved or sometimes even a little flexuous, somewhat oblique, 

 about eighteen on the body-wliorl. Interspaces very narrow, much 

 narrower than costelkc themselves, very finely spirally striate. 

 Periphery subangulate, the costelke ending at this place. Base 

 convex, smooth. Aperture subquadrate. Inner lip oblique in the 

 upper half, vertical in the lower. Outer lip nearly vertical. 

 Antei'ior margin of the aperture rounded. Height 9.5 milhm. 

 Diameter 1.2 millim. Bare. 



Fossil occurrence. — Shito. 



Living. — Central Japan. 



154. Turhonilla {(JhiyiUitta) triiwntn, Pilsbry. 



PL V. Fig. 14. 



Turhonilla {Ciiujulina) triarata. Pilsbry, New Jap. Mar. Moll, Gastr., Proc. Acad. 

 Nat. Sei. Philad., Jan. 1904, p. 31, pi. V, fig. 48. 



