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A new species of killifish of the family Profundulidae from the highlands of the Mixteca region, Mexico

Other TitlesUna especie nueva de ciprinodontiforme de la familia Profundulidae de las tierras altas de la región Mixteca, México
AuthorsOrnelas-García, Claudia Patricia; Martínez-Ramírez, Emilio; Doadrio, Ignacio
KeywordsNew species
Morphologic traits
Issue Date4-Dec-2015
PublisherUniversidad Nacional Autónoma de México
CitationRevista Mexicana de Biodiversidad 86(4): 926-933 (2015)
AbstractThe family Profundulidae is one of the few families of freshwater fishes endemic to the Mesoamerican region. It includes the genus Profundulus that has been divided into two subgenera, Profundulus, with a wider distribution and Tlaloc, which presents a more limited range. The species currently recognized within the subgenus Profundulus are P. punctatus, P. oaxacae, P. guatemalensis and P. kreiseri. Results from a previous study using allozymes revealed a high degree of molecular differentiation of the populations inhabiting the Mixteca region (located at the north of Oaxaca in Mexico), compared to the rest of the species in the genus, especially regarding its geographically nearest neighbor (P. oaxacae). The main goal of this study was to evaluate the morphological distinctiveness and to assess the taxonomic identity of the populations from the Mixteca region in comparison with the morphological variation of P. oaxacae. Based on 22 measurements (17 morphometric and 5 meristic), we examined the morphological variation within and among species, including 50 individuals from 5 localities. Our results show a high degree of morphological differentiation between both populations in accordance to the molecular information reported before, supporting that populations from the Mixteca region are a new taxonomic entity, which is described in the present study
Identifiersdoi: doi:10.1016/j.rmb.2015.10.001
issn: 1870-3453
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