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Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1973)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1983)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1984)

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Synopsis of an arrangement of invertebrate animals in the Free Public Museum of Liverpool - Higgins, H. H. (1874)

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