240 Messrs. J. C. Melvill and J. H. Ponsonby on 



margin over the umbilicus. Superficially the shell has a 

 dusty appearance, suggesting the trivial name (/covto-a\eo9) . 

 Several specimens. 



8. Helix {Pella) minythodes, sp. n. 

 (PL XIII. fig. 8.) 



H. testa angustissirae sed profunda umbilicata, globoso-depressa, 

 Isevi, parum nitente, cornea ; anfractibus quatuor, obscure striatis, 

 ultimo mos accrescente, subconvexis, ad suturas compressis ; 

 apertura liinari-ovata ; peristomate tenui, apud marginem colu- 

 mellarem triangulatim reflexo. 



Long, 8, lafc. 11 mill. 



Hab. Craigie Burn [Lightfoot) . 



A neat horn-coloured shell, with a very thin, almost smooth 

 epidermis, without gloss ; whorls depressed, very obscurely 

 striated ; peristome thin, triangularly reflexed over the 

 umbilicus, which is very narrow but deep ; mouth slightly 

 squamose at the base. 



Three specimens. 



9. Helix Farquhari, sp. n. (PI. XIII. fig. 9.) 



H. testa minima, umbilicata, tenui, cinereo-cornea ; anfractibus 

 quatuor, undique lougitudinalitcr scrobiculato-rugosis, gradatulis, 

 ventricosulis, apice papillari ; apertura rotundata ; peristomate 

 tenui, simplici. 



Long. 2, lat. 3 mill, 



Hab. Port Elizabeth {Farquhar). 



A very minute though interesting species, somewhat 

 recalling the H. rupestris (F^r.) of Great Britain and Europe. 

 The surface is ashy corneous, irregularly wrinkled with 

 oblique lines longitudinally ; whorls four, somewhat angled, 

 and simple mouth. 



10. Vitrina fuscicohr, sp. n. (PI. XIII. fig. 10.) 



V. testa ampla, orbiculari-depressa, fusco-brunnea, tenui, spira 

 subconica, ad apicem albescente ; anfractibus quatuor, lente 

 accrescentibus, longitudinaliter oblique striatis, transversim 

 irregularitcr unduloso-rugosis ; apertura lunari-ovata, ampla ; 

 peristomate tenuissimo, margine membranaceo. 



Long. 15, lat. 23 mill. 



Hab. Rensberg's Kop, an oflTshoot of the Drakensberg, 

 at an elevation of 7000 feet {Quekett). 



A remarkable shell, and one very dissimilar from any 

 species of the genus known to us from S. Africa, being of a 

 warm russet-brown colour, with superficial shagreened, almost 



