FAUXULUS. 247 



Subgenus ANISOLOMA Ancey. 



Anisoloma ANCEY, Journ. de Conchyl., xlix, 1901, p. 141, 

 for P. ponsonbyana, P. glanvilleana and P. pereximia. 



Fauxuli in which all, or nearly all, of the lamella? and 

 plicaB emerge to the lip-edge ; suprapalatal plica present ; 

 periphery defined by a change in sculpture. Type F. pon- 

 soribyana. 



The teeth are very fully developed in this group, which 

 somewhat resembles the European Odontocyclas by its emerg- 

 ing folds. The sinulus is limited by a suprapalatal plica, 

 while in Tomigcrella the upper palatal forms its limit. 

 Species and local races will probably prove to be somewhat 

 numerous. Both albino and colored shells occur in most lots. 

 They appear to be ground snails. 



6. FAUXULUS PEREXIMIUS (Melvill & Ponsonby). PL 40, fig. 3. 

 Shell sinistral, pyramidate, subrimate, much attenuated 



towards the apex; whorls 9, of which two apical are tumid, 

 the rest channellel at the sutures, tile-like, all roughly lirate, 

 the liras curved ; last whorl shortened. Aperture rhomboidal ; 

 peristome white, wrinkled, thickened, furnished with 9 folds 

 or teeth : two parietal folds, similar and deeply entering ; two 

 lip teeth, of which the lower is plicate, larger; two basal 

 folds, very long, entering; two columellar folds, and at the 

 base one small tooth. Length 7, width 4 mm. (M. & P.). 



South Africa: Buffalo Eiver, Cape Province (M. & P.). 



Pupa (Faula) pereximia MELV. & PONS., Ann. Mag. N. H. 

 (6), xix, June 1897, p. 638, pi. 17, f. 3. Pupa (Fauxulus) 

 pereximia M. & P., Ann. Mag. (8), i, p. 85, pi. 2, f. 25. 



So far as I know, only the type lot has been found. The 

 figure is a copy of that of Melvill and Ponsonby. It is dis- 

 tinct by the large size and the tapering, attenuated spire. 



7. FAUXULUS MCBEANIANUS Melvill & Ponsonby. PI. 40, figs. 

 4,5. 



The shell is perforate and rimate, ovate-conic, whitish or 

 light brown, finely and regularly obliquely striate, the striae 

 interrupted at the periphery, weaker on the base, which is 

 partly smooth in front. Aperture somewhat triangular. 



