72 HELIX-HELICOPHANTA. 



Has not been described by any authors except Ferussac and 

 Deshayes. Pfeiffer copies the original diagnosis. Crosse and Fish- 

 er have given good figures of the shell, two of which are reproduced 

 on pi. 42, figs. 31, 32. 



H. GRANDIDIERI Crosse & Fischer. PI. 42, fig. 30. 



Shell scarcely covered subrimate, globose-oviform, solid, longitu- 

 dinally -granulate-rugose, pale reddish-chestnut; spire short, apex 

 obtuse, planate ; suture impressed ; whorls 5, convex, embryonic 

 first H scarcely striate longitudinally, pale chestnut-rosy, the last 

 whorl large, inflated, longer than spire, spirally bifasciate with 

 blackish-brown, base rounded, aperture subvertical, ovate-pyriform, 

 livid white inside, the bands of the last whorl showing through ; 

 peristome reflexed, dull white ; margins connected by a thin callus, 

 the columellar dilated, thick, vertical, straight, basal and outer 

 margins reflexed, thickened. (C. & jP.) 



Alt. 49, greater diam. 35 mill. Aperture, alt. 35, breadth 26 mill. 

 , Madagascar. 



H. grandidieri C. & F. in Journ. de Conchyl. 1875, p. 226. Pfr., 

 Monogr. vii, p. 579. Helix Goudotiana CROSSE & FISCHER, Moll. 

 Madagascar, t. 1, f. 1, 2. 



A species allied in form and coloration to H. Goudotiana Fer., 

 but much smaller, more globose, the aperture subvertical, not 

 oblique, and the columellar margin much more broadly dilated. 



H. PARTULIFORMIS Boettger. 



Shell iniperforate, bulimiform, ovate, compressed on the back, 

 rather solid, brown, obscurely quadri-fasciate, bands little distinct ; 

 spire rather elevated, convex-conical, apex a little acute. Whorls 

 4J, slightly convex, very rapidly increasing, the upper whorls very 

 elegantly reticulated with spiral and transverse lines, the last 

 inflated ; incremental stride subwrinkle-like, gathered at the suture, 

 and numerous oblique wrinkles or malleations ; last whorl descend- 

 ing to the aperture, thrice the size of spire. Aperture substraight, 

 auriform, rather narrow, livid and showing the bands inside ; colu- 

 mella long, straight, with a knife-shaped callus in the middle; 

 peristome thickened, all around expanded and reflexed, margins 

 joined by a thin callus, the columellar margin broadly dilated above. 



Alt. 58, greater diam. 42, lesser 31 mill. ; alt. of aperture (with 

 peristome) 38 J, width 26* mill. 



Fotest of Loucoube, Island of Nossi-Be (one specimen). 



