Microlepidogaster discus, a new species of Hypoptopomatinae (Siluriformes: Loricariidae) from the rio Jequitinhonha basin, southeastern Brazil

Autor(es)

Martins, Fernanda O. ^[1] ; Rosa, Alaina C. ^[1] ; Langeani, Francisco ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, UNESP, Dept Bot & Zool, Lab Ictiol, Inst Biociencias Letras & Ciencias Exa, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Zootaxa; v. 3873, n. 5, p. 560-570, OCT 20 2014.
• Citações Web of Science: 6

Resumo

A new Hypoptopomatinae is described from the upper rio Jequitinhonha basin. The new species is distinguished from all congeners by having the ventral laminar expansions of cleithrum and coracoid bearing only 1-30 odontodes, restricted to the area near the pectoral-fin insertion; the anterior plates of mid-ventral lateral series reduced, not ventrally elongated, the first or the second markedly round; pectoral-fin unbranched ray distinctly divided distally, with 7-15 ossified segments, reaching almost half of its length; and accessory process on first epibranchial present. Microlepidogaster discus is further distinguished from its congeners by several other osteological features. The problems concerning the taxonomy of Microlepidogaster, as well as the pattern of distribution of the genus, are discussed. (AU)

• Processo FAPESP: 11/21728-7 - Filogenia de Hisonotus Eigenmann & Eigenmann, 1889 (Loricariidae: Hypoptopomatinae)
• Beneficiário: Fernanda de Oliveira Martins
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 12/23224-9 - Loricariidae do Escudo Cristalino brasileiro, com ênfase em Hypoptopomatinae e Neoplecostominae
• Beneficiário: Francisco Langeani Neto
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/23231-5 - Padrões da morfologia do sistema nervoso central de Hypoptopomatinae (Siluriformes: Loricariidae): implicações filogenéticas
• Beneficiário: Alaina Cristine Rosa
• Modalidade de apoio: Bolsas no Brasil - Mestrado