A new species of Leporinus Agassiz, 1829 (Characiformes: Anostomidae) from the rio Tocantins, Brazil

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, fou...

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Main Authors: Heraldo A. Britski, Jose L. O. Birindelli
Format: Article
Language:English
Published: Sociedade Brasileira de Ictiologia
Series:Neotropical Ichthyology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100025&lng=en&tlng=en
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author Heraldo A. Britski
Jose L. O. Birindelli
author_facet Heraldo A. Britski
Jose L. O. Birindelli
author_sort Heraldo A. Britski
collection DOAJ
description 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.
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spelling doaj.art-ec573d3333664ae2885777e12b6ba3332022-12-22T00:12:19ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-0224111253210.1590/S1679-62252013000100003S1679-62252013000100025A new species of Leporinus Agassiz, 1829 (Characiformes: Anostomidae) from the rio Tocantins, BrazilHeraldo A. BritskiJose L. O. BirindelliA 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100025&lng=en&tlng=enAnostomoideaLeporinus badueliLeporinus grantiOstariophysiTaxonomy
spellingShingle Heraldo A. Britski
Jose L. O. Birindelli
A new species of Leporinus Agassiz, 1829 (Characiformes: Anostomidae) from the rio Tocantins, Brazil
Neotropical Ichthyology
Anostomoidea
Leporinus badueli
Leporinus granti
Ostariophysi
Taxonomy
title A new species of Leporinus Agassiz, 1829 (Characiformes: Anostomidae) from the rio Tocantins, Brazil
title_full A new species of Leporinus Agassiz, 1829 (Characiformes: Anostomidae) from the rio Tocantins, Brazil
title_fullStr A new species of Leporinus Agassiz, 1829 (Characiformes: Anostomidae) from the rio Tocantins, Brazil
title_full_unstemmed A new species of Leporinus Agassiz, 1829 (Characiformes: Anostomidae) from the rio Tocantins, Brazil
title_short A new species of Leporinus Agassiz, 1829 (Characiformes: Anostomidae) from the rio Tocantins, Brazil
title_sort new species of leporinus agassiz 1829 characiformes anostomidae from the rio tocantins brazil
topic Anostomoidea
Leporinus badueli
Leporinus granti
Ostariophysi
Taxonomy
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100025&lng=en&tlng=en
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