Mollusca: Gastropoda Thecosomata and Gymnosomata
Massy, A.L. (1932). Mollusca: Gastropoda Thecosomata and Gymnosomata. Discovery Reports, III. University Press: Cambridge. 267-296, plate XXXIX pp.
Part of: Discovery Reports. University of Cambridge: Cambridge. ISSN 0070-6698, more
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