3820 On new Terrestrial Mollusca from South Africa. 
Pupa ridibunda, sp.n. (PI. II. fig. 11.) 
P. testa minuta, subrimata, brunnea, tenui; anfractibus 6, quorum 
apicalis depressus, vitreus, ceteris ad suturas impressis, ventri- 
cosis, arcte sub lente oblique-striatis ; apertura rotunda ; peristo- 
mate brunnescente, continuo et (precipue marginem apud colu- 
mellarem) crassiusculo, tribus dentibus plicisve preedito, videlicet, 
plica parietali bifida, prominula, dente basali acuto, plica colu- 
mellari bifurcata, intrante. 
Long. 2, lat. 1 mm. 
Hab. Under low trees at base of Elandsberg Mountains 
(Farquhar). 
A ventricose little species, with continuous peristome and 
complicated arrangement of mouth-processes. It does not 
appear nearly allied to any other species we know from the 
South-African region. 
Curvella caloglypta, sp.n. (Pl. II. fig. 12.) 
CO. testa ovata, subrimata, tenui, subpellucida ; anfractibus 5, apicali 
incluso minuto, depresso, omnibus ad suturas 1mpressis, gradato-- 
ventricosulis, undique longitudinaliter arctissime et oblique liratis, 
ultimo anfractu ceeteros permultum superante; apertura ovata ; 
peristomate tenui, margine columellari paullum incrassato, trian- 
gulatim reflexo. 
Long. 4°50, lat. 3 mm. 
Hab. Otto’s Bluff, near Pietermaritzburg, Natal (Burnup). 
From the three Curvelle hitherto found in the South- 
African region, C. catarracte, sinuosa, and globosa, M. & P., 
this most delicate species differs in the more quadrate whorls, 
compressed sutures, and especially in the close and regular 
oblique longitudinal liration, which needs, of course, a lens to 
bring out its beauty. It has only hitherto been found in 
very small quantity. 
Buliminus (Rhachis) dimerus, sp. n. 
(Pl. Il. fig. 13.) 
B, testa pyramidata, delicata, tenui, subpellucente, nitida, supra 
sub lente omnino decussatula, brunnea, infra anfractus ultimi 
peripheriam usque apud basin lete straminea, fere levi; an- 
fractibus 7, quorum apicali obtuso, nigro-brunneo, ceteris ad 
suturas impressis, tumidulis, ultimo ad peripheriam carinato, 
zonato ; apertura fere rotunda ; peristomate vix incrassato, tenui, 
margine columellari triangulatim reflexo. 
Long. 14, lat. 9 mm. 
Hab. Karkloof Bush, N. of Pietermaritzburg, Natal 
(J. McBean). 
