Publication
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Caribbean Scyphomedusae of the genus Cassiopea Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 25(1), 1-57.January 1968
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List of scientific publications by Professor Dr. H. Engel Article
Beaufortia, 15(180), 7-14.January 1968
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Note on an echinoid from Gough Island, South Atlantic Article
Beaufortia, 15(186), 51-56.January 1968
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Ornamental shell festoons of the Oostkerk at Middelburg Article
Beaufortia, 15(181), 15-20.January 1968
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Notes on a collection of birds from Costa Rica preserved in the collections of the Zoological Museum of Amsterdam Article
Beaufortia, 15(188), 63-68.January 1968
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Distribution and geographical variation of the White-tailed Hawk (Buteo albicaudatus) Article
Beaufortia, 15(208), 195-208.January 1968
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Gymnotus carapo and G. anguillaris (syn.: G. coropinae), two often confused species of gymnotid fishes (Pisces, Cypriniformes) Article
Beaufortia, 15(203), 161-168.January 1968
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On a skull of Peponocephala electra (Gray, 1846) (Cetacea, Globicephalinae) from Sénégal Article
Beaufortia, 14(177), 193-202.January 1968