neio Molluscafrom South Africa. 109 



ened, furnished with live plaits or teeth, of which the two 

 labial and the one basal are ordinary and simple, the parietal 

 or sutural plait being large and deep-seated, and the colu- 

 mellar also conspicuous. 



Two specimens. 



Its nearest ally is E. regularis, M. & P., from which, 

 however, it differs in having one whorl more, in the form of 

 the aperture, and in the detail of tlie dentition. 



14. Ennea socratica, sp. n. (PI. III. tig. 14.) 



E. testa profunda rimata, recta, cylindriformi, crassa, brunneo- 

 cinerea ; anfractibus octo, apud suturas impressis, undique longi- 

 tudinaliter oblique crassistriatis ; apertura curta, subrotunda; 

 peristomate albido, reflexo, ad basin incrassato, triplicate, plica 

 parietal! et labiali valde intrantibus, conspicuis, coluraellari 

 interna simplici. 



Long. 8, lat. 3-25 mill. 



Hab. Pietermaritzburg. 



A large form, of which we have only seen one specimen. 

 Deeply rimate, eight-whorled ; whorls incrassate, obliquely 

 coarsely longitudinally striate, impressed at the sutures ; 

 mouth subrotund, lip furnished with three |)laits, all deep- 

 seated and conspicuous ; peristome thickened internally at the 

 base. The mouth seems small in proportion to the length 

 of the shell, but there does not appear to be any malforma- 

 tion. More specimens are, however, desirable. 



15. Ennea tliarjieldensis^ sp. n. (PI. III. tig. 15.) 



E. testa parum rimata, oblonga, cylindrica, albo-cinerea ; anfrac- 

 tibus sexvel septem,ventricosulis, apud suturas impressis, undique 

 longitudiualiter crassistriatis ; apertura oblonga ; peristomate 

 producto, albo-nitente, incrassato, reflexo, (luiuqueplicato, plica 

 parietali prominente, conspicua, plica labiali multum incrassata, 

 aditum intrante et occludente ; basali interna mammseformi ; 

 columellari magna, incrassata; quinta denicjue iuter columellarem 

 parietalemque interna, minore. 



Long. 4-50, lat. 2 mill. 



Hah. Tharfield. In Coll. Edgar L. Layard, Esq. 



Several specimens of a form we cannot exactly place with 

 any described species, though much of the same build exter- 

 nally as several others. The peristome is five-plaited, of 

 which two are quite internal, the remaining three conspicu- 

 ously incrassate. 



Allied to E. crassidensj but not a form of that species. 

 Ann. dh Mag. N. Hist. tScr. 6. VoL xii. 9 



