new Mollusca from South Africa. 109 
ened, furnished with five 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. 
T'wo specimens. 
Its nearest ally is HE. regularis, M. & P., from which, 
however, it differs in having one whorl more, in the form of 
the aperture, and in the detail of the dentition. 
14. Ennea socratica, sp.n. (PI. III. fig. 14.) 
H. testa profunde 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, triplicato, plica 
parietali et Jlabiali valde intrantibus, conspicuis, columellari 
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 plaits, 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 tharfieldensis, sp. n. (Pl. ILI. fig. 15.) 
E. testa parum rimata, oblonga, cylindrica, albo-cinerea ; anfrac- 
tibus sex vel septem, ventricosulis, apud suturas impressis, undique 
longitudinaliter crassistriatis; apertura oblonga; peristomate 
producto, albo-nitente, incrassato, reflexo, quinqueplicato, plica 
parietali prominente, conspicua, plica labiali multum incrassata, 
aditum intrante et occludente; basali interna mammeeformi ; 
columellari magna, incrassata ; quinta denique inter columellarem 
parietalemque interna, minore. 
Long. 4°50, lat. 2 mill. 
Hab. Thartield. 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 #. crassidens, but not a form of that species. 
Ann. & Mag. N. Hist. Ser. 6. Vol. xii. 9 
