ISSN 0097-3157 PROCEEDINGS OF THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA 167: 85-146 2020 A reappraisal of phylogenetic relationships among auchenipterid catfishes of the subfamily Centromochlinae and diagnosis of its genera (Teleostei: Siluriformes) LUISA MARIA SARMENTO-SOARES Programa de Pós-Graduação em Biologia Animal, Universidade Federal do Espírito Santo. Prédio Bárbara Weinberg, Campus de Goiabeiras, 29043-900, Vitória, ES, Brasil. http://orcid.org/0000-0002-8621-1794 Laboratório de Ictiologia, Universidade Estadual de Feira de Santana. Av. Transnordestina s/no., Novo Horizonte, 44036-900, Feira de Santana, BA, Brasil Instituto Nossos Riachos, INR, Estrada de Itacoatiara, 356 c4, 24348-095, Niterói, RJ. www.nossosriachos.net E-mail:
[email protected] RONALDO FERNANDO MARTINS-PINHEIRO Instituto Nossos Riachos, INR, Estrada de Itacoatiara, 356 c4, 24348-095, Niterói, RJ. www.nossosriachos.net E-mail:
[email protected] ABSTRACT.—A hypothesis of phylogenetic relationships is presented for species of the South American catfish subfamily Centromochlinae (Auchenipteridae) based on parsimony analysis of 133 morphological characters in 47 potential ingroup taxa and one outgroup taxon. Of the 48 species previously considered valid in the subfamily, only one, Centromochlus steindachneri, was not evaluated in the present study. The phylogenetic analysis generated two most parsimonious trees, each with 202 steps, that support the monophyly of Centromochlinae composed of five valid genera: Glanidium, Gephyromochlus, Gelanoglanis, Centromochlus and Tatia. Although those five genera form a clade sister to the monotypic Pseudotatia, we exclude Pseudotatia from Centromochlinae. The parsimony analysis placed Glanidium (six species) as the sister group to all other species of Centromochlinae. Gephyromochlus contained a single species, Gephyromochlus leopardus, that is sister to the clade Gelanoglanis (five species) + Centromochlus (eight species).