BIVALVIA. 101 
one from the Lower Glacial sand of Belaugh, and a fragment from the Middle Glacial 
sand of Hopton, and these are all the instances that have occurred to my knowledge. It is 
by no means uncommon in the Cor. Crag, where specimens have a diameter of two 
inches. 
ANOMIA PATELLIFORMIS, Ziuné. Crag Moll., vol. u, p. 10, Tab. I, fig. 4. 
Localities. Cor. Crag passim. Red Crag passim. Fluvio-marine Crag, Bramerton. 
Chillesford bed, Sudbourn Church Walks, Aldeby and Bramerton. 
This species has been sent to me by Mr. Reeve from both beds at Bramerton, and 
by Messrs. Crowfoot and Dowson from Aldeby. Mr. Bell (Ann. and Mag. Nat. Hist.,” 
1870) gives it from Sudbourn. In the other localities I have obtained it myself. 
At p. 323, Appendix to ‘Crag. Moll.,’ Tab. XXXI, fig. 24, a Cor. Crag fossil was 
figured erroneously under the name of Aplysia ? ‘This I have since found to be the more 
solid portion of the lower or adherent valve of some species of Axomea, probably A. 
ephipprum. 
Ostrea EDULIS, Linné. Crag. Moll., vol. i, p. 13, Tab. H, fig. 1. 
Localities. Cor. Crag passim. Red Crag passim. Fluvio-marine Crag, Bramerton 
and Thorpe. Post Glacial, March, Kelsea Hill, Hunstanton, and Nar Valley. 
In ‘ Quart. Journ. Geol. Soc.,’ vol. xxvi, p. 94, a list of shells from the Middle Glacial 
sands is given on my authority, and in it this species is given from Stevenage, in Herts. 
Since then I have doubted whether the specimens upon the strength of which the name 
was inserted may not be those of Grypheu dilatata, and I have therefore omitted the 
species as a Middle Glacial shell. So far as the testaceous remains are a guide, I cannot 
in many instances distinguish between the forms of the secondary Gryphea and those 
of the recent Ostrea. ‘The species O. edulis is given in Dr. Woodward’s list (in ‘ White’s 
Directory *) as occurring at Bramerton and ‘lhorpe, but I have not seen it from thence, nor 
from any of the localities of the Chillesford bed. It is very profuse in the Post Glacial 
gravels of March, Kelsea Hill, and Hunstanton, as well as (according to Mr. Hose) in all 
the Nar Brickearth localities. 
OsTREA cocHLEAR, Poli. Crag Moll. vol. ii, p. 14, Tab. II, fig. 1c, as O. edulis, var. 
spectrum. 
Mr. Jeffreys, in his list accompanying Mr. Prestwich’s Cor. Crag paper, and also Mr. 
