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      Osteology and Myology of the Cephalic Region and Pectoral Girdle of Heptapterus mustelinus, Comparison With Other Heptapterins, and Discussion on the Synapomorphies and Phylogenetic Relationships of the Heptapterinae and the Pimelodidae (Teleostei: Siluriformes) Translated title: Osteología y Miología de la Región Cefálica y de la Cintura Pectoral del Heptapterus mustelinus, Comparación con Otros Heptapterinos, y Discusión de las Sinapomorfías y Relaciones Filogenéticas de los Heptapterinae y Pimelodidae (Telostei: Siluriformes)

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          Abstract

          The cephalic and pectoral girdle structures of the heptapterin Hepapterus mustelinus (Nemuroglanis clade') are described and compared to those of two representatives of the other, more plesiomorphic, main heptapterin group, namely Goeldiella eques and Rhamdia guatemalensis ('basal clade'), as well as of several other catfishes, as the foundation for a discussion on the synapomorphies and phylogenetic relationships of the Heptapterinae. In addition to the five synapomorphies commonly referred in the literature, there is another potential Heptapterinae synapomorphy: the well-developed maxilla forming a completely closed, deep tube to enclose the base of the maxillary barbel. The subfamilies Pimelodinae, Heptapterinae and Pseudopimeodinae seem to form a monophyletic assemblage, thus contradicting the commonly accepted idea that the family Pimelodidae is not a natural group

          Translated abstract

          Las estructuras de la región cefálica y de la cintura pectoral de Heptapterus mustelinus ('Nemuroglanis clade') son descritas y comparadas con las de dos representantes de un grupo más plesiomórfico, Goeldiella eques y Rhamdia guatemalensis ('basal clade'), así como las de otros peces gato, como fundamento para la discusión de las relaciones filogenéticas y de las sinapomorfías de los Heptapterinae. Además, de las cinco sinapomorfías referidas comúnmente en la literatura, este estudio advierte una otra sinapomorfía de Heptapterinae: la bien desarrollada maxila formando un tubo completamente cerrado para la base del bigote maxilar. Las subfamilias Pimelodinae, Heptapterinae y Pseudopimelodinae parecen formar un grupo natural

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          Most cited references36

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          Development and variation of the suspensorium of primitive catfishes (Teleostei: Ostariophysi) and their phylogenetic relationships.

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            Anatomy, relationships and systematics of the Bagridae (Teleostei: Siluroidei) with a hypothesis of siluroid phylogeny

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              On the South American catfish Brachyrhamdia imitator Myers (Siluriformes, Pimelodidae), with phylogenetic evidence for a large intrafamilial lineage

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                Author and article information

                Journal
                ijmorphol
                International Journal of Morphology
                Int. J. Morphol.
                Sociedad Chilena de Anatomía (Temuco, , Chile )
                0717-9502
                December 2007
                : 25
                : 4
                : 735-748
                Affiliations
                [02] orgnameUniversity of Liege orgdiv1Laboratory of Functional and Evolutionary Morphology Belgium
                [01] orgnameMuseo Nacional de Ciencias Naturales de Madrid Spain
                Article
                S0717-95022007000400011 S0717-9502(07)02500411
                10.4067/S0717-95022007000400011
                fe8785a8-853d-42d6-86a3-634083ac29cf

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 06 April 2007
                : 10 August 2007
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 39, Pages: 14
                Product

                SciELO Chile


                Siluriformes,Pimelodidae,Filogenia,Morfología,Heptapterinae,Pez gato,Phylogeny,Morphology,Catfish

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