A new species of Hisonotus (Siluriformes: Otothyrinae) from the upper rio Parana and rio Sao Francisco basins, Brazil

Autor(es)

Roxo, Fabio F. ^[1] ; Silva, Gabriel S. C. ^[1] ; Waltz, Brandon T. ^[2] ; Melo, Jorge E. G. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Dept Morfol, Lab Biol & Genet Peixes, Botucatu, SP - Brazil

^[2] Univ Louisiana Lafayette, Dept Biol, Lafayette, LA 70504 - USA

^[3] Pontificia Univ Javeriana, Dept Biol, Fac Ciencias, Unidad Ecol & Sistemat UNESIS, Bogota, Cundinamarca St - Colombia

• Tipo de documento: Artigo Científico
• Fonte: Zootaxa; v. 4109, n. 2, p. 227-238, MAY 6 2016.
• Citações Web of Science: 5

Resumo

A new species of Hisonotus is described from the upper rio Parana and rio Sao Francisco basins. The new species is distinguished from congeners by (1) completely exposed abdomen with no development of dermal plates (with the exception of extremely small platelets present near the urogenital pore in some specimens) and the combination of the following characters: (2) lack of a conspicuous tuft of enlarged odontodes on posterior tip of parieto-supraoccipital; (3) rectangular dorsal-fin spinelet; (4) complete mid-lateral plate series; (5) higher number of vertebrae, 29-30; (6) dark brown coloration on caudal fin with one pair of circular hyaline colored regions at center of both lobes; (7) absence of broad light stripes on dorsolateral surface of head; (8) odontodes not forming longitudinally aligned rows on head and trunk; and (9) apex of teeth yellowish in color. (AU)

• Processo FAPESP: 12/01622-2 - Analise das relações dos membros da tribo Ancistrini (Siluriformes: Loricariidae) com base em sequências de DNA
• Beneficiário: Gabriel de Souza da Costa e Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/05051-5 - Usando métodos comparativos filogenômicos para entender a diversificação dos peixes da superfamília Loricarioidea
• Beneficiário: Fábio Fernandes Roxo
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado