1901.] NATURxVL SCIENCES OF PHILADELPHIA. 499 



Macrochlamys Doenitzi (Reiuh.); but the species from Tane-ga- 

 shima has a narrower umbilical perforation, and the spire is more 

 developed, with an additional whorl. 



CLAUSILIID^. 

 Clausilia oscariana n. sp. 



Shell fusiform, rather slender, not subject to truncation, brown, 

 finely striate, the last whorl more coarsely so. Whorls lOi to 11-|, 

 the upper part of the spire decidedly attenuated. Aperture piri- 

 form, the peristome thickened and reflexed, with several more or 

 less distinct folds on its face, adjacent to the subcolumellar lamella. 

 Superior lamella rather small, oblicpie, not connected with the 

 spii'al lamella. Inferior lamella deeply I'ecediug, straightened and 

 subvertically ascending within. Subcolumellar lamella emerging. 

 Principal plica long. Lunella curved inward above, straightened 

 and connected with a short palatal plica below, being thus shaped 

 like an inverted letter J. Length 12-14.5, diam. 2.8-3.3 mm. 



Fukuregi, Province of Higo, Kiusiu (Mr. Y. Hirase, No. 674). 



This Hemiphcedasa belongs to the group of C. plieUabris A. 

 Ad. (bilabrata Smith), but this is a much smaller species and 

 difters in various structural characters. It is named in honor 

 of Dr. Oscar Boettger, the acute and lucid master in the study of 

 ClausiliidoB. 



Clausilia higoensis Q. sp. 



Shell fusiform, very much attenuated above, brown, finely 

 striate, the last whorl tapering. Whorls 10, the last more coarsely 

 striate dorsally, having a low, inconspicuous wave or prominence 

 behind the outer lip. Aperture piriform, the peristome slightly 

 reflexed, somewhat thickened. Superior lamella rather small, 

 oblique, marginal, continuous with the spiral lamella. Inferior 

 lamella deeply receding, rather straightly ascending inside. Sub- 

 columellar lamella immersed, or nearly emerging. Principal plica 

 extending beyond the lateral lunella. Lunella strongly curved 

 inward below, straightened above, where it joins the middle of a 

 short, oblique upper palatal plica. Length 14-15, diam. 3.7— 

 3.8 mm, 



Midumate, Province of Higo, Kiusiu (Mr. Y. Hirase, No. 

 677). 



A species of the Hemiphaedusan group of C. aivajiensis, perig- 



