HELIX-CHLORITIS. 271 



H. HERZIANA MollendorfF. Unfigured. 



Shell rather openly and deeply umbilicated, globose-depressed, 

 thin, horny-brown, transversely lightly striatulate; sculptured with 

 most minute impressed points arranged in regular, very close lines. 

 Whorls 5, convex, separated by much impressed sutures, the last- 

 whorl large, much inflated, not descending in front, obtusely but 

 distinctly angled around the umbilicus. Aperture little oblique, 

 rounded-lunar, the peristome lightly expanded, a little reflexed, 

 sublabiate, basal margin sinuous, bent backward at the columella. 



Alt. 10i greater diam. 17, lesser 14 J mill. (Mlldff.) 



Hoihow, Island of Hainan, S. China. 



H. herziana MLLDFF. K D. M. Ges. 1888, p. 41. 



Allied to .0. hungerfordiana Nev. and also H. franciscorum GredL, 

 puberula Heude, etc. 



H. RHINOCEROTICA Heude. PL 69, figs. 8, 9, 10. 



Shell orbicular-discoidal ; spire plane ; whorls 4-5, rather cylin- 

 drical, separated by an' impressed suture, regularly increasing, 

 epidermis white, shining, obsoletely, very minutely striate, somewhat 

 punctate; ornamented with a wide supraperipheral rufous zone; 

 last whorl subcylindrical, obscurely angled; aperture subquadrate; 

 peristome acute, expanded, scarcely reflexed, the columellar margin 

 angular ; umbilicus moderate, open, profound, obscurely margined 

 around its opening. 



Alt. 13-9, greater diam. 21-15, lesser 19-13 mill. (IT.) 



Tay-ninh, Cochin China. 



H. rhinocerotica H., Notes sur les Moll. Terr. Fl. BL, p. 144, t. 

 88, 14. 



H. QUIETA Reeve. PI. 50, figs. 42, 43. 



Shell umbilicated, depressed, striatulate, and everywhere most min- 

 utely granulated; silky, pellucid, reddish-horn-colored ; spire plane ; 

 suture impressed ; whorls 5, a little convex, the last large, rotund, 

 scarcely descending in front, obsoletely angulated around the nar- 

 row, funnel-shaped umbilicus. Aperture little oblique, rounded- 

 lunar, higher than wide ; peristome shortly expanded, the right 

 margin regularly arcuate, columellar margin oblique, sloping, 

 dilated. Alt. 10J, greater diam. 20, lesser 16 mill. (Pfr.) 



Misamis, 1st. of Mindanao, Philippines. 



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