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  1. By: Brown, David C. G. - Bustos-Obregon, E - Arrau, J
    Type: Article
    In: Gayana. Zoología
    Volume: 51
    Date: 1987
    Page Range: 177--199
    Publication Info: [Concepción, Chile], Universidad de Concepción, Instituto de Biología, 1961-1998