CAM^NA. 103 



Subdivisions. 



Subgenus CAM^NA (restricted). Shell capacious, narrowly um- 

 bilicated, depressed-globose, often carinated. Surface malleated or 

 wrinkled. Last whorl not descending in front. Distribution south- 

 ern China and Farther India. 



Section Phcenicobius Morch. Shell differing from Camsena in 

 the generally more elevated, conoidal or pupiform shape, and in 

 having (typically) four dark spiral bands; the surface varying from 

 smooth to rib-striate, sometimes slightly malleated beneath. Dis- 

 tribution, Philippine Is. 



Subgenus PSEUDOBBA v. Moell. Shell rudely sculptured, with 

 wrinkles or furrows oblique to the growth-lines ; solid ; umbilicus 

 large; peristome thickened, the terminations joined by a cord of 

 callus across the parietal wall. Distribution, Northern Celebes and 

 Sangir Is. 



Subgenus CAM^NELLA Pils. Shell smoothish, depressed sub- 

 globose, banded and maculated with brown on a white ground ; sur- 

 face smoothish; whorls about 5J, the last deflexed in front; embry- 

 onal shell less than one-sixth the diameter of the adult. Columella 

 with an obtuse tooth. Distribution, Island of Hainan. 



Subgenus NEOCEPOLIS Pils. Shell smoothish, globose-conical, 

 with 6-7 closely revolving whorls, the last deflexed in front. Aperture 

 having an internal fold within, marked by a pit outside ; the col- 

 umellar lip obtusely toothed. Distribution, Tonquin. 



Subgenus CAM^NA Alb. 



The shell is more wrinkled or malleated than in Phcenicobius ; 

 the last whorl does not descend in front. Of the four principal color 

 bands of this phylum of Helices, band ii (supraperipheral), or band 

 iii (subperipheral) is retained, bands i and iv being absent. Some 

 species show many fine spiral lines of color in addition. The anat- 

 omy is described above. The jaw is ribbed. The subgenus is Indo- 

 Chinese in distribution. Many more species will probably be dis- 

 covered. Type C. cicatricosa, pi. 19, fig. 8. 



Species. 



C. cicatricosa Mull., vi, 198. v. inflata Mlldff., vi, 199. 



senegalensis Fer. v. ducalis Anc., vi, 199. 



chinensis Voigt. 



