new Mollusks from South Africa. 85 



peristomate simplici, acuto, ad margiiicm columellarcni breviter 

 triangiilatim reflexo. 

 Long, y, hit. 4-50 mill. 



Ilal). Somerset District, S. Africa. 



Allied to JJ. hisculpta (Benson), from which this little 

 species differs in its whorls being more discoid, greater depres- 

 sion of spire, and smaller size ; the system of sculpture, so 

 far as the closely ranged longitudinal striaj are concerned, 

 though a])parcntly identical, is found u])on examination with 

 a strong lens to he far more clearly and finely developed in 

 II. hisculpta^ the stria3 in that species looking like finely cut 

 serrations round the edge of the periphery, while in //. ej)e- 

 trima they are barely perceptible and the edge of the shell 

 looks ragged in comparison. 



3. Helix {Pella) lygcea, sp. n. (PI. IV. fig. 7.) 



H. testa profunde sed angustc iimbilicata, cornea, tenui ; spira 

 deprcsso-couoidea ; anfractibus sex (ultimo acuti-carinato), uudi- 

 que confertim regulariter obliquistriatis ; apertura lunari : peri- 

 stomate simplici, ad basin reflexo, at ad marginem columellarera 

 laminam triangularcm formaute. 



Long. 7, lat. 12 mill. 



Hah. Natal {Lightfoot). 



A conspicuous species, but one which we have not seen in 

 good live condition. It is of the same horny and striated 

 character of whorl as the last two species, much resembling 

 H. lens (Fer.) in miniature, but the outer lip is not so strongly 

 expanded nor developed as in that species. 



4. Stenogyra cacicjuinata, sp. n. (PI. VI. fig. 2.) 



S. testa acute turrita, gracili, pellucida, albo-cornea, undique la^vis- 

 sima, nitida ; anfractibus decern, ultimis quinque fere uniformibus, 

 ad apicem sensim gradatulis, apice quasi-papillari ; apertura 

 ovata ; peristomate simplici, acuto. 



Long. 21, lat. 5 mill. 



Hah. Bedford {Farquhar). 



A remarkably delicate, shining, pellucid shell, differing 

 from all the species of the genus hitherto described, though 

 ■ its characters are simple enough. 



5. Ennea ilielodonta^ sp. n. (PI. VI. fig. 4.) 



E. testa Bubrimata, breviter cylindriformi, obtusa, albo-cornea, 

 nitida, tenuissime et regulariter obliquistriata ; anfractibus sex, 



