Taxonomic study of Hoplias microlepis (Günther, 1864), a trans-Andean species of trahiras (Ostariophysi: Characiformes: Erythrinidae)

Autor(es)

George M. T. Mattox ^[1] ; Alessandro G. Bifi ^[2] ; Osvaldo T. Oyakawa ^[3]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Dept Biol, BR-18052780 Sorocaba, SP - Brazil

^[2] Univ Estadual Maringa, Nucleo Pesquisas Limnol Ictiol & Aquicultura, BR-87020900 Maringa, Parana - Brazil

^[3] Univ Sao Paulo, Museu Zool, BR-04218970 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Neotropical Ichthyology; v. 12, n. 2, p. 343-352, 2014-06-00.

Resumo

The Hoplias malabaricus species group represents one of the most complexes taxonomical problems in the systematics of Neotropical fishes, including specimens widely distributed in most drainages of South America and part of Central America with great variation or overlap of putative diagnostic characters. The large number of nominal species, many of which without known type material, renders the problem more complicated. Currently, at least three nominal species can be included in the Hopliasmalabaricusspecies group based on the form of the medial margins of dentaries and presence of tooth plates on the tongue: Hoplias malabaricus, H. teres, and H. microlepis, the latter representing the only exclusively trans-Andean known species of the genus. We present herein a taxonomic study of Hoplias microlepis based on examination of syntypes and recently collected specimens, including a redescription of the species. Hoplias microlepisoccurs in the Pacific drainages of Panama and Southwestern Costa Rica, in addition to the río Guayas basin in Ecuador and the region near its mouth (río Tumbes, Northwestern Peru). Records of the species on the Atlantic coast of Panama are restricted to the Canal Zone, suggesting dispersal through the Panama Canal. We also designate lectotype and paralectotypes. (AU)

• Processo FAPESP: 12/01075-1 - Proposta de estágio de pesquisa no exterior associado ao projeto de pós-doutorado Estudo Filogenético de Priocharax Weitzman & Vari (Teleostei, Characiformes, Characidae) em um Contexto Ontogenético: uma Abordagem do Processo de Miniaturização
• Beneficiário: George Mendes Taliaferro Mattox
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
• Processo FAPESP: 10/50941-8 - Estudo filogenético de Priocharax Weitzman & Vari (Teleostei, Characiformes, Characidae) em um contexto ontogenético: uma abordagem do processo de miniaturização
• Beneficiário: George Mendes Taliaferro Mattox
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado