Clicks: 168
ID: 200327
2013
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Abstract
A new species of Leporinus is described based on specimens from the lower rio Tocantins, Pará State, Brazil. The new species is diagnosed by having conspicuous dark spots on center of scales on anterolateral portion of body, 33 or 34 scales in lateral line, 16 scales rows around caudal peduncle, four scale rows between dorsal-fin origin and lateral line and four between lateral line and pelvic-fin origin, and four teeth on premaxilla and four on dentary. The new species is similar to Leporinus gomesi, L. granti, and L. nijsseni for having three prominent dark midlateral blotches, smaller blotches formed by dermal pigment, five of which form an interrupted "X" between head and first midlateral blotch, small dark spots formed by epidermal pigment, terminal mouth with four teeth on premaxilla and four on dentary, and relatively few scales on lateral line (less than 36). In addition, new data is provided for the type specimens of Leporinus granti and L. megalepis (=Hypomasticus megalepis),, and L. badueli is confirmed as a junior synonym of L. granti.
Uma espécie nova de Leporinus é descrita a partir de exemplares do baixo rio Tocantins, estado do Pará, Brasil. A espécie nova é diagnosticada por possuir conspícuos pontos escuros no centro de cada escama da porção anterolateral do corpo, 33 ou 34 escamas na linha lateral, 16 séries de escamas ao redor do pedúnculo caudal, quatro séries de escamas entre a origem da nadadeira dorsal e a linha lateral e quatro entre a linha lateral e a origem da nadadeira pélvica, quatro dentes no pré-maxilar e quatro no dentário. A espécie nova se assemelha a Leporinus gomesi, L. granti e L. nijsseni por apresentar três manchas escuras laterais no corpo, manchas menores no corpo formadas por pigmentos dérmicos dispostas num "X" entre o opérculo e a primeira mancha lateral, pontos escuros formados por pigmentos epidérmicos, boca terminal com quatro dentes no pré-maxilar e quatro no dentário, e relativamente poucas escamas na linha lateral (menos de 36). Além disso, dados novos sobre as séries de exemplares-tipo de Leporinus granti e L. megalepis (=Hypomasticus megalepis) são apresentados, e L. badueli é confirmado como um sinônimo júnior de L. granti
Reference Key
britski2013neotropical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Heraldo A. Britski;José L. O. Birindelli
Journal landscape and urban planning
Year 2013
DOI
DOI not found
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100025
Keywords
taxonomyzoology ostariophysi

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