109 
CERITHIUM melanioides, 
TAB, CXLYIL— F/g*. 6 and 7 * 
Spec. Char, Turreted, obscurely longitudinally 
undulated ; whorls convex, bearing above the 
middle a largely tuberculated carina, below 
with two or three transverse tuberculated ca- 
rinm ; beak very short. 
A handsome shell, differing from the last in the blunts 
ness of the tubercles, which have ,a less coronated form, 
and in the lesser number of volutions ; it is smooth, ge- 
nerally shining ; the lesser earinse are about four, con- 
stant on the lower part of the whorls, but near the mid- 
dle often little better than two elevated striae or even 
quite wanting : the mouth is almost round ; the beak is 
very short, if any, but I have seen no perfect specimen. 
The peculiar abundance of this species at Charlton ap- 
pears to claim for it a distinction. Fig. 6 is the whitest 
specimen I have seen, which I gathered there. Miss 
itaslileigh sent me a fine specimen, gathered at South- 
fleet, which is a variety with the smaller bands in conspi- 
cuous risings, and according with a specimen found in 
Clay above the Chalk, atNewhaven, by G. A. Mantell, 
Esq. who also sent me some marked Hamsey. I have 
also found it on the banks of the Croydon canal, near 
the Kent road, among gravel 
A figure of this Cerithium is given in the second plate 
of Smith’s 6( Strata, identified by organized Fossils,” 
