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      Taxonomic status of Aphyocharax avary Fowler, 1913, Aphyocharax pusillus Günther, 1868 and Chirodon alburnus Günther, 1869 (Characiformes, Characidae)

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      Zoosystematics and Evolution

      Pensoft Publishers

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          Abstract

          The obscure taxonomic histories of three species of Aphyocharax (A. alburnus, A. avary and A. pusillus) are revised, based on both morphological and literature data. Aphyocharax avary is resurrected as a valid species and removed from synonymy with A. alburnus. Based on examinations of type specimens, A. alburnus is considered a junior synonym of A. pusillus.

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          The so-called cheirodontin fishes of Central America with descriptions of two new species (Pisces: Characidae)

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            LVI.—Diagnoses of some new freshwater fishes from Surinam and Brazil, in the collection of the British Museum

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              Molecular phylogeny of Aphyocharacinae (Characiformes, Characidae) with morphological diagnoses for the subfamily and recognized genera.

              The subfamily Aphyocharacinae was recently redefined to comprise eight genera: Aphyocharax, Prionobrama, Paragoniates, Phenagoniates, Leptagoniates, Xenagoniates, Rachoviscus and Inpaichthys. This new composition, however, is partially incongruent with published results of molecular studies especially concerning the positions of Rachoviscus and Inpaichthys. Our goal was to investigate the monophyly of Aphyocharacinae and its interrelationships using three distinct phylogenetic methodologies: Maximum-likelihood and Bayesian analyses of molecular data, and also Parsimony analysis of a concatenated molecular and morphological dataset. All tree topologies recovered herein suggest that Rachoviscus, Inpaichthys and Leptagoniates pi do not belong to the Aphyocharacinae. The remaining aphyocharacin taxa analyzed do form a monophyletic group, which is itself composed of two subgroups being one comprised of Paragoniates, Phenagoniates, Leptagoniates and Xenagoniates, and the other comprised of Aphyocharax and Prionobrama. Internal relationships among these genera are statistically well supported and morphological synapomorphies are presented at the generic level. All tree topologies also indicate that Aphyocharacidium is closely related to Aphyocharacinae suggesting that it should be included in this subfamily. As recognized in the present study, the Aphyocharacinae is diagnosed by a single morphological synapomorphy: two dorsal-fin rays articulating with the first dorsal pterygiophore. Copyright © 2012 Elsevier Inc. All rights reserved.
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                Author and article information

                Journal
                Zoosystematics and Evolution
                ZSE
                Pensoft Publishers
                1860-0743
                1435-1935
                August 15 2018
                August 15 2018
                : 94
                : 2
                : 393-399
                Article
                10.3897/zse.94.28201
                © 2018

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