•94 ^^t. 1. — M. Yokoyama: 



Two specimens both broken at apex. In a fresh state the 

 shell seems to have been provided with a coloured band close to 

 the lower suture. 



A close ally of this species is Fyramidella éenuiscripta Lke. 

 (Dall and Bartsch, Notes on Jap. Pyram. alread}^ cited, p. 334, pi. 

 XXVI, hg. 3) which Lischke himself has described as ObeUscus 

 tenulscriptus (Jap. Meeresconch., Ill, pp. 58, 59, pi. Ill, figs. 7, 8). 

 But the present species is more slender, has tlie body-whorl more 

 rounded, the columella-fold more oblique and the antero-inner 

 -corner of the aperture more obtuse. 



Fossil occurrence. — Shito. Oji in Musashi. 



131. JPyrainidella (Zphhina) sit'tt, Yokoyama. 

 P]. IV. Fig. 26. 



Shell medium-sized, subulate. Nuclear whorls helicoid, stan- 

 ding on edge but partly immersed in the first post-nuclear whorl, 

 Post-nuclear whorls about eight in number with surface slightly 

 convex, somewhat shouldered at the summit so that the sutures 

 appear subchannelled, finely spirally striate, the striae usually 

 visible onl}^ with a lens. Periphery rounded. Base convex. 

 Aperture partly broken but seems to have been longly subquadrate. 

 Columella-fold very oblique. Height 8 millim. Diameter 1.8 

 millim. A single specimen. 



Fossil occurrence. — Shito. 



132. PyvatnUleUti {Acfaeopyratnis) enchnia, (Lischke). 



PI. VI. Fig. 1. 



^Fi/ramideUa {Actacoj>i/ramis) exhnia. Dall and Bartsch, Jap., Iiulopac. a. Americ. 



Pyramid., p. 327, pi. XXIII, fig. 1. Pilsbry, Cat., p. 84. 

 Pyramidella exhnia. Tokimaga, Foss. Env. Tokyo, p. 23, pi. I. fig. 46. 

 Monoßti/gma eximium. Lischke, Jap. Meerescoucli., Ill, p. 59, pi. Ill, figs. 4-6. 

 Monoptygina jiunctictdata. Brauns, Geol. Euv. Tokio, p, 31. 



This is a large species with many somewhat convex, spirally 

 incised whorls shouldered at the summit. Spiral striations about 

 seven on the penultimate, and about twelve on the ultimate whorl 

 including those of the base. Columella fold only weakly indicated. 



