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The status of Brycon labiatus Steindachner 1880 (Pisces, Characoidei) and its symptoms, Othonophanes labiatus (Steindachner 1880)
Braum, E. (1983). The status of Brycon labiatus Steindachner 1880 (Pisces, Characoidei) and its symptoms, Othonophanes labiatus (Steindachner 1880). Amazoniana 8(2): 265-271
In: Amazoniana. Kommissions-Verlag Walter G. Mühlau: Kiel. ISSN 0065-6755, more
Peer reviewed article  
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Keywords
    Classification > Taxonomy
    Diseases > Human diseases > Hypoxia
    Fauna > Aquatic organisms > Aquatic animals > Fish > Air breathing fish
    Mouth parts
    Synonymy
    Brycon labiatus Steindachner 1880; Brycon melanopterus; Characoidei; Othonophanes labiatus (Steindachner 1880); Pisces [WoRMS]
    Fresh water
Author  Top 
  • Braum, E.
Abstract
    A reversible skin enlargement in the middle part of the lower jaw appears when Brycon cf. melanopterus is exposed to hypoxic conditions. The form and relative size of this lip is similar to that described as the specific characteristic of Brycon labiatus by Steindachner (1880) and later made the definitive feature of the genus Othonophanes . This is not a constant characteristic, as previously thought. It is much more likely a dermal structure induced by hypoxia, as demonstrated experimentally for B. cf. melanopterus . This is assumed to be produced by other species of the genus Brycon, and it is therefore proposed that B. Labiatus with its synonym Othonophanes labiatus be considered a species inquirenda.
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