HELIX-CAM^ENA. 201 



columellar margin thickened, dilated, partly covering the umbili- 

 cus. (Mlldff.) Alt. 36, greater diam. 48, lesser 40 mill. 



Province of Guang-dung, China. 



Helix (Hadra) subgibbera v. MOLLDFF, Jahrb. D. M. Ges. '1885, 

 p. 394, t. 11, f. 21. 



The open umbilicus, coloration and marking show this to be 

 closely allied to H. cicatricosa ; and it might be considered a dex- 

 tral variety of that shell were it not for the more convex whorls, 

 stronger peripheral keel, finer sculpture, and the inflation of the 

 last volution. The above description is from Mollendorff. Two 

 specimens were collected by Dr. Gerlach, a few days travel inland 

 from Hongkong. 



H. LEONHARDTI Mollendorff. Unfigured. 



Shell broadly umbilicated, globose-depressed, a little solid, trans- 

 versely striatulate and minutely granulose, a little shining, pale 

 brown, ornamented with numerous brown bands, one at the periph- 

 ery wider ; whorls 5, the upper subplane, following a little convex, 

 the last rather acutely angulated at the periphery, base more con- 

 vex, obtusely angulated around the profound, funnel-shaped umbil- 

 icus ; not descending in front. Aperture oblique, lunate-rounded, 

 peristome expanded, a little reflexed, labiate with white, margins 

 joined by a very thin callus, columellar margin dilated, partially 

 concealing the umbilicus. Alt. 26, greater diam. 44, lesser 38 mill. 



Nien-hang-li, eastern part of the province Guang-dung, China. 



Hadra Leonhardti MLLDFF. N. D. M. Ges. 1888, p. 42. 



A species similar to H. subgibbera Mlldff., but easily distinguished 

 by being more depressed, the umbilicus wider, lacking wrinkles of 

 the surface ; by the luster, granulation, less inflated, scarcely gib- 

 bous, more angulated last whorl. 



H. ILLUSTRIS Pfeiffer. PL 13, figs. 57, 58. 



Shell with the umbilicus covered or having a minute chink be- 

 hind the lip ; solid and strong, opaque, yellow or reddish-brown, 

 often with a dark line or narrow band at the periphery, which is 

 more or less keeled. Surface slightly shining, covered with a close 

 malleated sculpture of irregular wrinkles, which above are coarse and 

 obliquely descending, but are finer beneath and concentric. The 

 spire is dome-shaped, obtuse ; suture superficial on the upper whorls 

 becoming impressed around the last one. Whorls 5, the inner 2 



