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Monophyly of the Agoniatinae (Characiformes: Characidae)

Home Forums Ichthyology Monophyly of the Agoniatinae (Characiformes: Characidae)

This topic contains 0 replies, has 1 voice, and was last updated by  nuchal man 5 years, 6 months ago.

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  • #302750

    Matt
    Keymaster

    Would very much appreciate a copy of this one.

    Abstract

    The Characidae is the most diverse family of Neotropical fishes, currently encompassing more than one thousand valid species.
    Some subgroups within this family still lack phylogenetic definitions, being diagnosed on the basis of combination of
    characters, a common procedure in pre-cladistic studies. Agoniatinae, currently composed by two valid species, Agoniates
    anchovia and A. halecinus, is one of them. In the present study the Agoniatinae is redefined using a phylogenetically oriented
    comparative survey that included the two Agoniates species plus 114 species representing all the major clades of the Characidae
    and their closest relatives. Six derived morphological characters are identified as synapomorphies for the Agoniatinae:
    deep notch on the posterior region of the maxilla joining the ventral margin of the infraorbital 2; dentigerous portion of premaxilla
    shorter than the ascending process of this bone; dentary canine preceded by tricuspid teeth; ventral margin of the
    urohyal markedly convex; base of the uppermost ray of the ventral lobe of the caudal fin much expanded, being as deep as
    the distal margin of hypural 2; and levator arcus palatini muscle with a posterodorsal bundle of fibers attaching to the dorsal
    face of the sphenotic spine.

    #350897

    nuchal man
    Participant

    I would also appreciate a copy of the paper please

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