Kennard, A.S.; Woodward, B.B. (1914). On Helix (Macularia) ogdeni, n.sp., from the Pliocene (Red Crag) of Ramsholt, Suffolk. Proceedings of the Malacological Society of London. 11: 155.
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Kennard, A.S.; Woodward, B.B.
1914
On <em>Helix (Macularia) ogdeni</em>, n.sp., from the Pliocene (Red Crag) of Ramsholt, Suffolk
Proceedings of the Malacological Society of London