200 HELIX-CAM^ENA. 



H. HAHNI Mabille. PL 24, figs. 76, 77 ; pi. 65, fig. 



Shell sinistral, narrowly umbilicate, depressed, solid, opaque, rich 

 chestnut brown ; surface scarcely shining, covered with a dense 

 granulation, very minute and nearly obsolete on the whorls of spire, 

 coarser on the last whorl, quite coarse beneath ; spire whorls with 

 low, irregular radiating folds, broken into low tubercles at the 

 periphery of penultimate whorl ; growth-lines coarse and irregular 

 on the last whorl ; whorls 5, the upper ones subplanulate, sutures 

 not impressed, the last whorl convex above, the suture becoming 

 impressed ; periphery carinated, base convex, whorl not deflexed at 

 aperture ; aperture oblique, lunar, livid inside ; peristome thick, 

 expanded all around, purplish flesh-colored, terminations not con- 

 verging, columellar margin considerably dilated, half concealing 

 the umbilicus ; parietal wall with a very thin, flesh-colored callous. 



Alt. 20, diam. maj. 45, min. 40 mill. 



Alt. 28, diam. maj. 45, min. 39 mill. Width of umbilicus 3? mill, 

 (specimen.) 



Tonguin. 



H. hahni MABILLE, Moll. Tonk. diagn., p. 3 (May, 1887) ; Bull. 

 Soc. Mai. France, 1887, p. 82, t. 4, f. 9, 10. Camcena Hahni ANCEY, 

 Le Naturaliste (Paris) 1888, p. 71. Ariophanta Broti D'HAM. & 

 DATJTZ., Journ. de Conchyl. 1887, p. 214, t. 8, f. 1. 



Differs from H. cieatricosa in being more depressed, more carina- 

 ted, with deeper color and different sculpture. I am indebted to 

 L'ABBE A. VATHELET for the specimen described above. The first 

 given measurements are from Mabille's description. 



A figure of the synonymous A. Broti is given on pi. 65, fig. 88. 



H. SUBGIBBERA Mollendorff. PL 25, figs. 89, 90. 



Shell dextral, urnbilicated, subdepressed-globose, solid, sculptured 

 with transverse close, rough strise and wrinkles, which are obliquely 

 descending on the upper surface, concentric on the base. Color pale 

 brown, painted with numerous brown bands, a wider blackish-chest- 

 nut one at periphery. Whorls 5, the upper subplane, the follow- 

 ing convex, the last subacutely angled at the periphery, base much 

 inflated, almost gibbous, compressed and somewhat angled around 

 the umbilicus. Aperture diagonal, lunate-rounded, peristome nar- 

 rowly expanded, a little reflexed, margins joined by a thin callus ; 



