Title

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

Authors

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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