Sonntag, C.F.

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Sonntag, C.F. 1925. The comparative anatomy of the tongues of the mammalia, XII: Summary, classification and phylogeny. Proceedings of the Zoological Society of London 1925 (1): 701-762, figs. 31-45.

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Sonntag, C.F. 1922. The comparative anatomy of the tongues of the mammalia, VII: Cetacea, sirenia and ungulata. Proceedings of the Zoological Society of London 1922 (2): 639-657, figs. 25-30.

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