LAURIA. 63 



mellar lamella immersed, visible in an oblique view as a small 

 median prominence. 



Length 3.1, diam. 1.7. ; 5y 2 whorls. 



Island of Bourbon (Nevill). 



The simplicity of the anterior end of the angular lamella, 

 which is removed further than usual from the lip-insertion, 

 differentiates this species from L. dadion, which is also some- 

 what longer, less striate and has a thickened white lip. 



Five specimens in the type lot were collected by Nevill, 

 who labelled them P. pupula Dh. — a species of Pupilla. 



11. Lauria farquhari (Melv. & Pons.). PL 8, figs. 1, 2. 



The shell is cylindric-tapering with obtuse, rounded sum- 

 mit, perforate and rimate, with a funnel-shaped umbilical 

 area bounded by a basal angulation; light brown, somewhat 

 translucent ; smoothish, with very fine, faint striation. The 

 whorls are somewhat convex, the last a little compressed 

 basally, and in typical specimens the base is distinctly angular 

 or subangular (but in some examples this is not so conspic- 

 uous. The peristome is narrowly reflected, flattened, and 

 narrowly thickened at the inner edge, the thickening excised 

 at the sinulus. The thin angular lamella gives off a short 

 branch towards the lip-insertion, but separated from it by a 

 narrow channel. It runs inward about one-third of a whorl. 

 The columella bears a small, oblique lamella, emerging nearly 

 to the peristome. 



Length 3.8, diam. 1.9 mm. ; Qy 2 whorls. 



Length 3.4, diam. 1.8 mm. ; 6^ whorls. 



Cape of Good Hope : Top of Elandsberg Mt., Cradock dis- 

 trict (Farquhar). 



Pupa farquhari Melvill & Ponsonby, Ann. Mag. N. H. 

 (7), ii, 1898, p. 128, pi. 7, f. 7; (8), i, 1908, p. 74, pi. 1, f. 7. 



While this species stands close to L. dadion, it differs by 

 the somewhat larger size and greater number of whorls ; more 

 especially by the subangular base and somewhat more funnel- 

 shaped umbilical opening, the perforation of which is small, 

 about as in dadion. There are no young ones in several lots 

 seen. It varies from 3.93 to 4.24 mm. long, according to M. 





