34 A.rt. 1. — M. Yokoyaum : 



24. Ter ehr il <j[ufulrinrata, Yokoyaina. 

 PI. I. Fig. 22. 



Shell subulate, tolerably solid. Wh oris niaii}" (more than 

 thirteen), nearly flat, ornamented with four impressed spiral lines. 

 The uppermost line is found at some distance from the upper 

 suture, equalling about one-third of a whorl, while tlie second 

 is nearly in its middle. The two remaining ones are on the lower 

 half of tlie whorls, the distance between the second and the third 

 being generally greater than that between the third and the fourth. 

 Periphery rounded. Base abruptly narrowed. Canal short and 

 recurved. The apex as well as the outer lip is Ijroken. The shell', 

 if perfect, would measure about 3U millim. in height. The dia- 

 meter is 6.5 millim. 



Fossil. — Shito (rare). 



25« Terebra latisuleafa, Yokoyama. 

 PL I. Fig. 23. 



Shell subulate. Whorls about thirteen, with a subsutin-al row 

 of weak distant tubercles numbering about twelve on the penulti- 

 mate whorl. Below this row of tubercles there is a broad shallow 

 groove with a deeply impressed line at its bottom which, liowever, 

 may be either indistinct or wholly obsolete. Below the groo.ve the 

 surface is somewhat convex and longitudinally weakly plicate, the 

 number of plicae being generally equal to that of the tubercles al;»o\e 

 the groove. Each of these plicae begins at the top witli the 

 tubercle just mentioned, is flatly roof-shaped, often so flat as to 

 become indistinct or even obsolete. Periphery rounded. Base 

 abruptly narrowed, with faint indications of longitudinal plicae 

 only. Sutures deep. Aperture subrhombic. Canal short, bent 

 somewhat backward. Height 30 millim. Diameter 6 millim. 



Fossil occurrence. — Shito (rare). 



