HELIX-CAM^ENA. 207 



3. Var. FOLYZONA Mollendorff. PL 26, fig. 3. 



Always rnultifasciate with brown ; shell elevated-globose, like H. 

 hainanensis in contour, and proportionally more elevated ; umbili- 

 cus wholly covered. 



Alt. 43, diam. 46 mill. ; alt. 45, diam. 48 mill. 



Hongkong, China. 



All three agree with xanthoderma in the fine, regular wrinkling, 

 the strongly raised last whorl, and the total lack of umbilical fissure. 

 I believe, therefore, that a combination of all these forms with hain- 

 anensis is not necessary, but that the banded form from the main- 

 land and from Hongkong may be referred to H. xanthoderma, and 

 H. hainanensis be left as a distinct species. (Mlldff?) 



Group of H. monochroa Sowb. 



The following Philippine Island species have been variously 

 classed by authors. The large nucleus and malleated sculpture show 

 them to belong to Camcena (as I have restricted that section) rather 

 than to Hadra. It may be noted that while many Philippine 

 Island helices belong to groups distributed to the south and south- 

 west of the Archipelago, the Camcena are evidently of northern der- 

 ivation, being more allied to the species of China. 



H. TRAILLI Pfeiffer. PL 23, figs. 63, 64. 



Shell large, globose-conoid (or turbinate), elevated, narrowly 

 nearly closed umbilicated ; solid, strong, opaque, russet-brown above, 

 becoming reddish-chestnut on the body-whorl, encircled by an ill- 

 defined dark band midway between periphery and suture, the 

 periphery marked by a narrow darker band, bordered below by a 

 wider porcelain-white zone ; this is followed by a wide dark brown 

 zone, below which there is a large white umbilical tract. Surface 

 closely and very strongly ribbed-striate above, less distinctly so be- 

 neath ; and slight traces of malleation are visible. The spire is ele- 

 vated, conical ; apex whitish, a little blunt ; nucleus large, consist- 

 ing of 2? whorls, the last part darker than the beginning of the fol- 

 lowing whorl; suture impressed. Whorls 5, convex, the last large, 

 descending gradually in front, rounded at the periphery. Aperture 

 oblong-truncate, oblique, white but showing the bands inside ; peri- 

 stome rather broadly expanded all around, dark brown, variegated 



