68 HELIX-HELTCOPHANTA. 



what converging, straightened, joined by a brown-edged callus. 

 Columellar lip reflexed, almost covering the perforation. (Mouss.) 

 Alt. 43, greater diam. 77, lesser 45 mill. 



Eastern Madagascar. 



Helicophanta (Helix) Audeberti Moussox, in Journ. de Conchyl. 

 1882, p. 38, t. 3, f. 1. H. souverbiana CROSSE & FISCHER, Moll. 

 Madagascar, t. 5, f. 1, 2 ; t. 6, f. 2, 2a. 



This beautiful species is seen at a glance to belong with H. sou- 

 verbiana; differing however in the following characters: the shell 

 is more depressed and more transverse ; the whorls of the spire are 

 less convex ; the last, especially, descends, beginning at the suture, 

 in a slightly swollen surface, whilst at the back it is more strongly 

 curved, sometimes almost angular ; the coloration is lighter, more 

 yellowish, and especially remarkable for the girdle of brown, a color 

 which also is seen on the peristome and edges the parietal callus. 

 (Mouss.) 



Notwithstanding the differences indicated above by Mousson, I 

 regard the H. audeberti as a mere variety, distinguished principally 

 by the persistent epidermis, not evanescent in zones as in typical 

 souverbiana. 



Group of H. gloriosa Pfr. 



H. GLORIOSA Pfeiffer. PI. 11, fig. 40. 



Shell imperforate, depressed-ovate, thick, ponderous, obliquely 

 closely plicate-striate and encircled by close, obtuse subregular lira? ; 

 tawny, marked with paler and darker oblique streaks ; spire convex, 

 obtuse, denuded of epidermis, granulate under a lens ; apex very 

 small. Whorls 3, rapidly widening, the last much inflated. Aper- 

 ture oblique, lunate-oval, reddish inside ; peristome very thick, 

 narrowly expanded, margins joined by a thick callus, the columellar 

 margin adnate. (Pfr.) Alt. 39, greater diam. 64, lesser 50 mill. 



Madagascar. 



H. gloriosa PFR. Proc. Zool. Soc. Lond. 1856, p. 385 ; Mono- 

 graphia iv, p. 205 ; Novitates Conch, i, p. 107, t. 30, f. 1, 2. 



Group of H. Goudotiana. 



H. OVIFORMIS Grateloup. PI. 66, fig. 60. 



Shell ovoid, ventricose, imperforate, greenish-fulvous, a little 

 rugose ; spire short, obtuse ; last whorl large, encircled by two 



