1901.] NATURAL SCIENCES OF PHILADELPHIA. 



Species of unknown subgeneric position. 



The following forms have been too imperfectly characterized to 

 permit their reference to subgeneric groups : 

 C. CINCTICOLLIS Ehrmann. Province Tosa, Shikoku. 

 C. CRASSILAMELLATA Ehrmann. Province Tosa, Shikoku. 

 C. GOULDII A.. Adams. Tago. 

 C. IJIM^E Ehrmann. Province Tosa, Shikoku. 

 C. LIRULATA A. Adams. Mososeki. 



C. NODULIFERA v. Mart. Nippon, probably from near Yeddo 

 (Donitz). Based upon a single, perhaps abnormal, 

 specimen. 



C. PINGUIS A. Adams. Kino-o-sima. 

 C. PROBA A. Adams. Kino-o-sima. 

 C. SPRETA A. Adams. Tago. 

 C STENOSPIRA A. Adams. Kino-o-sima. 

 C. STIMPSONI A. Adams. Tsu-sima and Awa-sima. 



APPENDIX. 



The following: species have been received since the preparation 

 of the foregoing list, bringing the number of recognized species to 

 99, with 37 subspecies or varieties ; exclusive of 11 species of inde- 

 terminate position, enumerated above. 



Section HEMIPHJ3DUSA Bttg. 



C. SUBIGNOBILIS Pils. 9 Hirado, Hizen (Y. Hirase). 

 C. TANTILLA Pils. JO Goto, Uzen (Y. Hirase). 



C. subignobilis n.sp. Rather stout, fusiform, light brown, lightly 

 striate, composed of 9^ whorls. Spire strongly attenuated above, the apex 

 small. Aperture subtrapezoidal, the lip reflexed and thickened. Superior 

 lamella rather small, inferior very deeply receding, subcolumellar emerging. 

 Principal plica rather short. Lunella lateral, arcuate or bow-shaped. 

 Length 15, diam. 3.3 mm. Like C. ignobilis Syke?, but with smaller 

 tarly whorls. 



10 C. tantilla n.sp. Small, brownish, fusiform, striatulate, the last 

 whorl distinctly striate ; whorls 8, the second rather large. Aperture 

 small, squarish -ovate, the lip well reflexed, somewhat thickened. Superior 

 lamella Muall, inferior deeply receding, subcolumellar either immersed or 

 emerging. Lunella oblique, united above with the middle of a short upper 

 palatnl plica. Length 9.5, diam. ?.5 mm. 



