Abstract
The Non-Marine Mollusca of the Pleistocene deposits near Oxford have received but scant attention in the past, and we are greatly indebted to Dr. K. S. Sandford for submitting to us the series found by him during his recent survey of the district. Although the list of species is not extensive, two species are new to science ; and it is evident that further work will add greatly to the number. We hope that this pioneer work is only the prelude to an exhaustive study of these deposits and their fauna.
Dr. K. S. Sandford obtained two species from this deposit: namely, Unio prestiwichi sp. nov. and Sphærium radleyense sp. nov.
Four species are recorded by John Phillips from Pleistocene gravel at Kidlington, and two species are preserved in the Oxford University Museum. The list will thus be
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In the collection of the Oxford University Museum are examples of Corbicula fluminalis (Müller) from this locality, but the exact site is unknown.
From a temporary excavation in Magdalen Park Dr. Sandford obtained fifteen species, namely:—
Jacosta (Cernuella)
virgata (Da Costa) 1 example.
Fruticicola (Capillifera) hispida (Linné) 1 example.
Cochlicopa lubrica (Müller) 1 example.
Limnæa pereger (Müller) 2 examples.
Limnæa, truncatula (Müller) 1 example.
Bithynia tentaculata(Linné) 7 examples.
Valvata piscinalis (Müller) common.
Unio littoralis, Lamarck, 2 examples.
Unio prestwichi
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