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Article
Published: 2016-11-09

Two new species of the genus Xenotoca Hubbs and Turner, 1939 (Teleostei, Goodeidae) from central-western Mexico

Laboratorio de Biología Acuática, Facultad de Biología, Universidad Michoacana de San Nicolás de Hidalgo, Edificio “R” planta baja, Ciudad Universitaria, Morelia, Michoacán, México
Laboratorio de Biología Acuática, Facultad de Biología, Universidad Michoacana de San Nicolás de Hidalgo, Edificio “R” planta baja, Ciudad Universitaria, Morelia, Michoacán, México
Department of Biological Sciences, Southeastern Louisiana University, Hammond, LA, 70402, USA
Pisces taxonomy morphometric meristic conservation Central Mexico

Abstract

The subfamily Goodeinae (Goodeidae) is one of the most representative and well-studied group of fishes from central Mexico, with around 18 genera and 40 species. Recent phylogenetic studies have documented a high degree of genetic diversity and divergences among populations, suggesting that the diversity of the group may be underestimated. The species Xenotoca eiseni has had several taxonomic changes since its description. Xenotoca eiseni is considered a widespread species along the Central Pacific Coastal drainages of Mexico, inhabiting six independent drainages. Recent molecular phylogenetic studies suggest that X. eiseni is a species complex, represented by at least three independent evolutionary lineages. We carried out a meristic and morphometric study in order to evaluate the morphological differences among these genetically divergent populations and describe two new species. The new species of goodeines, Xenotoca doadrioi and X. lyonsi, are described from the Etzatlan endorheic drainage and upper Coahuayana basin respectively.

 

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How to Cite

DOMÍNGUEZ-DOMÍNGUEZ, O., BERNAL-ZUÑIGA, D. M., & PILLER, K. R. (2016). Two new species of the genus <em>Xenotoca</em> Hubbs and Turner, 1939 (Teleostei, Goodeidae) from central-western Mexico. Zootaxa, 4189(1), 81–98. https://doi.org/10.11646/zootaxa.4189.1.3