216 Mr. W. H. Benson on new species of Helices. 
polita, marginibus acutis expansiusculis, callo tenui junctis, inferiori 
valde arcuato, subreflexo ; umbilico lato, profundo, omnes anfractus 
exhibente, margine subcompresso. 
Diam. major 47, minor 40, axis 15 mill. 
Benson, J. A. 8. vol. v. p. 351. 
Pfeiffer, Monograph, vol. i. p. 395. no. 1028. 
Hab. in montibus preeter fines provinciee Bengalize orientales versus 
septentrionem spectantes. 
The remaining species belong to the south-western termination 
of the African continent, and are not the only species which 
escaped the researches of Krauss in the immediate vicinity of 
Cape Town. 
7. Helix Cotyledonis, nobis, n. s. 
T. imperforata, depresso-turbinata, tenui, leeviuscula, diaphana, eor- 
neo-fusca, opaciter albo-zonata ; spira elevata, apice obtuso ; anfrac- 
tibus 5, convexiusculis, fascia lata alba superficiali, fusco interrupte 
striata, superne ornatis ; ultimo subtus convexo, rude radiato-sub- 
plicato, fasciis duabus similibus angustis cincto ; apertura obliqua, 
lunata, intus fuscata ; peristomate recto, acuto, margine columellari 
breviter reflexo, arcuato, intrante, calloso ; callo umbilicum omnino 
tegente. 
Diam. major 16, minor 14, axis 9 mill. 
Hab. prope Simon’s Bay, P. B.S. 
I got a single fresh and perfect example adhering to the fleshy 
leaf of a species of Cotyledon, among bushes, on the sand-heaps 
near the Round Battery at Simon’s Town, Cape of Good Hope, 
in October 1846. Weathered shells, which were whitish, with 
a fuscous stain underneath, occurred in the drifting sands, with 
the reversed Pupa Pottebergensis, Krauss, and Cyclostoma affine, 
Sow. 
There is a single bad specimen of H. Cotyledonis in Case 25 of 
the British Museum collection, without name or locality ; and in 
Case 26 are two smaller examples, in worse condition, presented 
by Professor M‘Gillivray, and marked “ from Simon’s Bay.” 
8. Helix vorticialis, nobis, n. s. 
T. late umbilicata, subdiscoidea, superne depresso-planata, tenui, ru- 
fescente-cornea ; spira concaviuscula ; sutura profunda ; anfractibus 
4, angustis, convexis, confertim radiato-plicatis, penultimo promi- 
nente, ultimo subtus valde convexo ; umbilico lato, profundo, omnes 
anfractus exhibente, margine subangulato ; apertura verticali, lu- 
nata, subcompressa, marginibus rectis tenuibus, callo tenuissimo 
junctis. 
Diam, major 6, minor 5, axis 3 mill. 
Hab. ad Promontorium Bone Spei, rarior, sub lapidibus. 
Unfrequent near Three-anchor Bay, Green Point ; and at Camp 
