GASTEROPODA. 69 
Pavupina MEDIA, Woodward. Crag Moll., vol. i, p. 110, Tab. XII, fig. 1. 
Patupina Mepis, S. Woodward. Geol. of Norfolk, pl. iii, figs. 5 and 6. 
— — 8. P. Woodward. In Gunn’s article on Geology of Norfolk in 
White’s Hist. and Directory of Norfolk 
Sheffield, 1864. 
Locality. "luvio-marine Crag, Bramerton and Thorpe. 
The Paludina from Bramerton and Thorpe described in ‘Crag Mollusca,’ vol. i, 
p- 110, Tab. XII, fig. 16, was referred to P. lenta and P. unicolor, but which in vol. ii I 
changed to P. paris. This Fluvio-marine shell of Bramerton I now think ought to 
have been called P. media, the name the late Dr. 8. P. Woodward restored to it, and 
from his so doing I presume he also considered it a distinct species. This name was 
rejected by myself because there were two shells figured by S. Woodward, sen., in the 
‘Geology of Norfolk,’ called media and rotundata, and I did not know which was to be 
considered the type. 
Patupina Cracronensis, S. Wood. Supplement, Tab. J, fig. 4, a. 6. 
Locality. Post-glacial, Clacton. 
The specimens figured were obtained at Clacton, by the Rev. O. Fisher. They were 
found by him in the marly portion of the deposit at that locality, in association with 
Corbicula fluminalis, and where I have also found some estuarine species Mytilus edulis, 
Scrobicularia plana, and Tellina Balthica." Under these circumstances the peculiar 
thickened and somewhat angular form which it possesses, like g/acialis, suggests the idea 
whether both it and g/acialis are not distortions of some known species of Paludina, due 
to their living either in salt or brackish water. I have, however, given it provisionally 
the specific name of Clactonensis. 
A shell from the diluvium at Templehof, near Berlin, called P. didwiana, Kunth 
(‘Zeitschrift f. Geolog. Geschellschaft,’ Berlm, 1865, Tab. VII, fig. 8), very much 
resembles Clactonensis, and may be identical with it. 
Patupina conrscta, Millet. Supplement, Tab. I, fig. 6. 
CycLostoma contectuM, Millet. Mollusca of Maine-et-Loire, 1813, p. 5. 
PaLupDINA ListERI, Mordes and Hanley. Brit. Moll., vol. i, p. 8, pl. Ixxi, fig. 16. 
Locality. Pre-glacial Forest Formation, Woman Hythe, Runton. 
The above figure represents a shell from the purely freshwater deposit at Woman 
1 These three marine species may very possibly, however, not belong to the Post-glacial deposit at all, 
but be modern shells washed into it ; the deposit where these shells occurred being on the present beach. 
