248 
ORGANIC REMAINS 
W ealden, as well as of the Shanklin sand, will be 
described and figured with so much accuracy and 
detail, in the masterly paper of Dr. Fitton, on the 
beds below the chalk, that I shall notice the subject 
in a very brief manner. 
7 
1. Paliulina elongata. 4,5. Paludina fluviorun). 
2. Neretina Fittoni. 6. Psammobia. 
3. Paludina carinifera. 7. Cypris faba. 
Paludina fluviorum. — This freshwater univalve 
is the principal constituent of the Sussex marble : 
it occurs in the grit and sandstone, but more 
sparingly than in the upper limestone strata. 
Paludina carinifera. — A small species found in 
septaria, in Resting-oak Hill, with Cypria faha. 
Paludina elongata : in the grit of Tilgate 
Forest, and in the limestone, and sandstone at 
Hollington, near Hastings, and at St. Leonard’s. 
Neretina Pittoni. — The eleu'ant little shell here 
