Revision of the deep-channel electric fish genus Sternarchogiton (Gymnotiformes : Apteronotidae)

    Authors

    C. D. de Santana;W. G. R. Crampton

    Comments

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    Abbreviated Journal Title

    Copeia

    Keywords

    AMAZON BASIN; TELEOSTEI; Zoology

    Abstract

    The Neotropical ghost knifefish genus Sternarchogiton is revised on the basis of morphology and pigmentation. A new diagnosis for the genus is provided. Two new deep-channel taxa from the lowland portions of the Amazon basin are described: S. labiatus and S. preto. Sternarchogiton labiatus is diagnosed by the possession of a hard, prominent, three-lobed structure on the lower lips, two rows of teeth on the dentary, a second hypobranchial with a medial bridge, an ossified first basibranchial, and cartilaginous posterior basibranchials. Sternarchogiton preto is diagnosed by black or very dark brown body coloration, five long and conical teeth on the premaxilla, a dentary with one row of conical teeth pointing toward inside of mouth, the fusion of the supracleithrum and posttemporal, and anterior portion of coracoid not reaching anterior edge of cleithrum. A dichotomous key to species of the genus is provided.

    Journal Title

    Copeia

    Issue/Number

    2

    Publication Date

    1-1-2007

    Document Type

    Article

    Language

    English

    First Page

    387

    Last Page

    402

    WOS Identifier

    WOS:000246637600013

    ISSN

    0045-8511

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