Publication
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Afrocampsis, a new genus belonging to the Sigalphinae (Hymenoptera: Braconidae) from the Afrotropical region Article
Zoologische Mededelingen, 64(11), 155-160.January 1990
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Probable Mesozoic vicariance in the biogeography of Euphausiacea Article
Bijdragen tot de dierkunde, 60(3/4), 155-162.January 1990
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Precopulatory mate guarding in copepods Article
Bijdragen tot de dierkunde, 60(3/4), 209-213.January 1990
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Siamthelphusa holthuisi spec. nov., a new species of gecarcinucoid freshwater crab (Crustacea: Decapoda: Brachyura) from Thailand Article
Zoologische Mededelingen, 63(17), 235-239.January 1990
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Jehaia stocki n.g., n. sp., a new interstitial janiroid isopod from the Dominican Republic, Hispaniola (Crustacea; Isopoda; Janiroidea) Article
Beaufortia, 41(26), 187-193.January 1990
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Rediscovery of a type of Ceratophrys boiei Wied (Amphibia: Anura: Leptodactylidae) Article
Zoologische Mededelingen, 63(20), 267-273.January 1990
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A revision of the Indian species of Oberonia (Orchidaceae) Article
Orchid Monographs, 4(1), 1-43.January 1990
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De larven der Nederlandse Chironomidae (Diptera) Deel C: Autoekologie en verspreiding Article
Nederlandse Faunistische Mededelingen, 1(C), 1-85.January 1990