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  1. By: Lohrmann, Volker - Engel, Michael S.
    Type: Article
    In: Zoosystematics and evolution
    Volume: 91
    Issue: 2
    Date: 2015
    Page Range: 191--197
    Publication Info: Sofia Pensoft
    Subjects: aberration  binary anterior ocelli  Malformation  Median ocellus  Morphology  para-median ocelli  Teratology  twin ocellus