28 PROCEEDINGS OF THE ACADEMY OF Feb-, 



less elevated shell, with decidedly larger umbilicus, the whorls 

 being more loosely coiled. Specimens from the fossil-bed on the 

 same island (Hirase's No. 6846) are a little larger, the largest 

 measuring alt. 15, diam. 20 mm. They show the same open 

 umbilicus and rather lax coil. 



C. turgidus Pfr., from the same deposit, is decidedly larger than 

 the typical form, diam. 27-28 mm. 



Diplommatina kiiensis n. sp. 



Shell cylindric, conic above, the tapering portion less than half 

 the length of the shell ; dull red ; sculptured with strong but narrow 

 thread-like rib-striae, slightly coarser on the cone than on the last 

 two whorls. Whorls 6 J, convex, the last narrower, strongly ascend- 

 ing in front. Aperture circular, the lip narrowly expanded, re- 

 inforced by a narrow rib or crest close behind it ; continuous across 

 the parietal wall. Columellar denticle strong. Palatal fold very 

 long. Length 3.3, diam. nearly 2 mm. 



Nachi, Kii. Types No. 82,656, Coll. A. N. S. P., from No. 

 837a of Mr. Hirase's collection; also No. 8376, from the same 

 locality. 



Some specimens are superficially eroded, and whitish ash-colored. 

 The palatal fold is unusually long. It is a smaller species than D. 

 tenuiplica, larger than nipponensis or cassa. 



Diplommatina kobelti var. ampla nov. 



Shell with the spire long and regularly tapering to an obtuse 

 apex. Whorls 8 to 8-J, convex, the last narrower and ascending 

 as usual ; pale reddish or corneous ; evenly sculptured with delicate 

 thread-like rib-striae, subobsolete on the last half of the last whorl. 

 Aperture subcircular, with straightened, sinuous columellar margin. 

 Columellar tooth strong. Palatal fold curved, covered by the 

 expanded parietal callus. 



Length 4, diam. 2 mm. 



Goto, Uzen. Types No. 82,664, Coll. A. N. S. P., from No. 

 812 of Mr. Hirase's collection. It is larger than D. kobelti, with 

 more whorls. 

 Diplommatina pudica n. sp. 



Shell cylindric below, tapering in a long, slender spire above, the 

 apex small, somewhat obtuse ; dull red, the spire and apex blush- 

 ing deep rose. Sculpture of thread-like riblets, conspicuous and 



