Conchoecia from the North Atlantic: the "Procera" Group
Angel, M.V. (1971). Conchoecia from the North Atlantic: the "Procera" Group. Bull. Br. Mus. Nat. Hist., Zool. 21(7): 259-283
In: Bulletin of the British Museum, Natural History. Zoology. British Museum of Natural History: London. ISSN 0007-1498, meer
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