CYCLOPHORUS.—P are IX. 
Species 38. (Fig. a, 4, Mus. Benson.) 
CycLopHorus BEnsont. Cyel. modicé umbilicatd, sub- 
globoso-turbinaté, albidd, castaneo sparsim lineari-len- | 
tiginosd, versus apicem tenue fulguratd, infra periphe- 
riam conspicue anguste fasciatd, spird elevatiusculd, an- 
Sractibus rotundatis, subinflatis, dense granoso-striatis, 
ad peripheriam interdum obscuré carinatis ; aperturd 
Jere circulari, labro eleganter reflexo, vivide aurantio. 
BEnson’s Cyctopuortvs. Shell moderately umbilicated, 
somewhat globosely turbinated, whitish, sparingly 
linearly freckled with chestnut, finely zigzag towards 
the apex, conspicuously narrowly banded below the 
periphery, spire somewhat raised, whorls rounded, 
slightly inflated, densely grain-striated, sometimes 
obscurely keeled; aperture nearly circular, lip ele- 
gantly reflected, bright-orange. 
Cyclostoma Bensoni, Pfeiffer, Pro. Zool. Soc. 1852, p. 158. 
Hab. Assam, north of the Khasia range, India. 
Very closely allied to C. Pearsoni, but of lighter colour, 
as may be seen by a comparison of our very characteristic 
figures of each species, and the whorls are rather more 
rotundately inflated. Specimens of C. Bensoni before me, 
from the collections of Mr. Cuming and Mr. Benson, 
by the side of Mr. Benson’s type-specimen of @. Pear- 
sont, together with several of that species collected on 
the Khasia Hills by Dr. Hooker, confirm these slight 
differences without showing any intermediate gradation. 
One of the most obvious differential characters in @. 
Pearsoni is the constant presence on the periphery of 
a sharply-defined narrow pale band resting on the dark 
one. 
