Molecular delimitation and taxonomic revision of the wimple piranhaCatoprion(Characiformes: Serrasalmidae) with the description of a new species

Autor(es)

Bonani Mateussi, Nadayca T. ^[1] ; Melo, Bruno F. ^[1] ; Oliveira, Claudio ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Inst Biociencias, Dept Biol Estrutural & Func, Rua Prof Dr Antonio CW Zanin 250, BR-18618689 Botucatu, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Fish Biology; v. 97, n. 3 JUL 2020.
• Citações Web of Science: 0

Resumo

A taxonomic revision of wimple piranhas of the genusCatoprionis performed in combination with a molecular analysis using mtDNA. Molecular phylogenetic analyses of 49 specimens using genetic distances, conventional likelihood and four delimitation methods yielded two distinct lineages ofCatoprion, with the morphological analyses of 198 specimens ofCatoprioncorroborating the molecular results. We provide a redescription ofCatoprion mento, from the Paraguay, Orinoco, and tributaries of western Amazon basin, keepingMylesinus macropterusas a junior synonym ofC. mento, and the description ofCatoprion absconditusn. sp., from the Amazon and Essequibo basins.C. absconditusn. sp. differs fromC. mentoby the presence of 86-94 perforated scales in the lateral line (vs.65-86 scales) and the presence of 35-40 circumpeduncular scales (vs.29-34 scales). The distribution ofC. mentofollows the Amazonas-Paraguay-Orinoco lowlands, whereasC. absconditusfollows the eastern Amazon biogeographic pattern. (AU)

• Processo FAPESP: 16/11313-8 - Filogenia da Ordem Characiformes (Teleostei: Ostariophysi) utilizando elementos ultraconservados
• Beneficiário: Bruno Francelino de Melo
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 14/26508-3 - Filogenia da hiperdiversa ordem Characiformes (Teleostei: Ostariophysi) utilizando elementos ultraconservados
• Beneficiário: Claudio de Oliveira
• Modalidade de apoio: Auxílio à Pesquisa - Temático