146 SUPPLEMENT TO THE CRAG MOLLUSCA. 
deposit is the only one among the Upper Tertiaries of the Hast of England in which it 
has for certainty occurred. It is, I believe, abundant in the deposit at Selsey, and in that 
near Belfast, and in the Clyde beds. 
VENERUPIS Inus, Linn. Crag Moll., vol. ii, p. 205, Tab. XIX, fig. 6 a—é. 
Localities. Cor. Crag, Sutton. Red Crag, Walton. 
I have recently found a fragment of this shell in the Cor. Crag of Sutton, having 
known it previously only from the Red Crag of Walton. Venerupis Irus so much 
resembles the genus Zapes in every respect that I believe it belongs to the Venersde and 
not to the Saaicavide. 
GasTRANA LaMINosa, J. Sow. Crag. Moll., vol. u, p. 217, Tab. XXV, fig. 1. 
Localities. As in ‘ Crag. Moll.’ 
This is (or was) not very rare either in the Cor. Crag of Orford and Sutton or in the 
Red Crag at Walton Naze and Sutton, but I do not know whether it extended its existence 
into the Butley Crag. The South African shell, called Petricola ventricosa, Krauss, ‘ Sud. 
Afrikan. Mollusk,’ very much resembles our species, and seems to be its representative in 
the southern hemisphere in the same manner as many Australian marine shells are said to 
be identical with those in Europe. TZellina Guinaca, Chemn., vol. x, p. 346, tab. 
170, figs. 1651-3, a species from T'ranquebar, is another shell that can scarcely be removed 
from our Crag species. Gastrana laminosa is given as Hragilia laminosa by Mr. Jetireys 
in his list accompanying Mr. Prestwich’s Cor. Crag paper, p. 139. 
Donax vitratus, Da Costa. Crag Moll., vol. 1, p. 219, Tab. XXII, fig. 7. 
Localities. Fluvio-marine Crag, Bulchamp, Postwick, and Bramerton? Chillesford 
bed, Horsted and Aldeby. Lower Glacial, Belaugh. 
In the ‘Crag Mollusca’ this shell is. given from the Crag of Bramerton, but Mr. 
Reeve does not appear to have detected it there. It is, however, given by the late Dr. 
Woodward in his list in White’s ‘ Directory’ as from Bulchamp and Postwick as well as 
Bramerton. If it be thus present in the Fluvio-marine Crag it is another of the few shells 
that, on the hypothesis of the Red and Fluvio-marine Crags being coeval, ought to occur 
in the Red Crag, but which has not yet been detected there. I have found this species 
myself at Horsted and Belaugh, and it was sent to me from Aldeby by Messrs. Dowson 
and Crowfoot. 
