80 Messrs. J. C. MelvIU and J. li. Ponsonbj on 



14. Papa pentherij Stur. 



Pupa pentheri, R, Sturany, Anz. k. Akad. Wissensch. Wien, 1898, 

 no. xvi. Rep. p. 8 ; id.' Catal. Sudafrik. Moll. 1898, p. 70, Taf. ii. 

 figs. 34-3G. 



A very minute, elongate-cylindrical, seven-wliorled species, 

 with simple mouth, containing no processes whatsoever. An 

 extension of its range has been made by Mr. Toppin's 

 discovery of its existence at Dukuduku, Zululand. 



Alt. 1-85, lat. 0-78 mm. (maj.). 



15. Papa jyerplexa, Burnup, sp. n. (Pi. II. figs. 17, 18.) 



Shell very small, umbilicate, cylindrical, thin, translucent, 

 shining, pale brown ; spire cylindrical, rounded above, sutures 

 impressed, apex obtuse; whorls 6, very convex, closely trans- 

 versely Urate exce])ting the first two, which are smooth, the 

 fourth, fifth, and sixth of nearly equal width, the last half- 

 whorl acquiring its greatest width a little below tlie suture 

 and then being flattened below, forming an infra-sutural 

 angle, the last whorl compressed towards the umbili- 

 cus ; aperture rounded, nearly ^ the height of the shell ; 

 peristome reflexed, especially at the columellar margin, 

 thickened, connected by a slight callus, whitish, furnished 

 with a small white parietal plait ruiniing inwards, and there 

 becoming strong, and a strong white postcolumellar plait 

 also running inwards, in addition to which there is a profoundly 

 postlabial tooth or plait hidden by the columella ; labium 

 slightly incurved about the middle; columella straight. 



Alt. 1-72, lat. 0-82 mm. 

 „ 1-74, „ 0-80 „ 

 „ 1-80, „ 0-77 „ 



hah. Oradock, Cape Colony {Farquhar) ; Johannesburg, 

 Transvaal [McBean) ; Pretoria {Collier & Ponsonhy) ; Port 

 Elizabeth [Farquhai') ; Potchefstroom [Miss Livingston). 



A very pretty and interesting little species, much like iota, 

 M. & P., in colour, sculpture, and ventricosity of whorls, but 

 differing in being shorter, more cylindrical, and umbilicate 

 instead of rimate, and in having a more thickened and reflexed 

 peristome, fewer whorls, and an armature of tooth-processes 

 of which the other is, typically, destitute. 



The arrangement of the peristomatal and other processes 

 in this species is very elusive, some examples viewed from 

 the front showing no plaits, others one, some two, and a few 

 all three ; but in most specimens they can all be seen under 

 a strong lens by turning the shell round. Such specimens 



