109 
CERITHIUM melanioides. 
TAB. CXLVII.---Fig. 6 and 7. 
Srec. Cuar. Turreted, obscurely longitudinally 
undulated ; whorls convex, bearing above the 
middle a largely tuberculated carina, below 
with two or three transverse tuberculated ca- 
rine ; beak very shojt. 
A handsome shell, differing from the last in the blunt- 
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 carine are about four, con- 
stant on the lower part of the whorls, but near the mid- 
dle often little better than two elevated striz 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 
Rashleigh 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, at Newhaven, by G. A. Maniell, 
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 “ Strata, identified by organized Fossils.” 
