A colony of Nucella (olim Purpura) lapillus (Linn.) with operculum malformed or absent
Cooke, A.H. (1917). A colony of Nucella (olim Purpura) lapillus (Linn.) with operculum malformed or absent. Proc. Malac. Soc. 12(5): 231-232
In: Proceedings of the Malacological Society of London. Dulau & Co.: London. ISSN 0025-1194, more
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