A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil

ABSTRACT A new species of Characidium is described based on specimens obtained from the highland streams of the Serra do Mar, Atlantic Forest Biome, in Paraná State, Southern Brazil. The new species is possibly a member member of the C. lauroi group, which is diagnosed by having the isthmus unscaled...

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Main Authors: Marcelo R. S. Melo, Paulo A. Buckup, Osvaldo T. Oyakawa
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=S1679-62252016000300210&lng=en&tlng=en
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author Marcelo R. S. Melo
Paulo A. Buckup
Osvaldo T. Oyakawa
author_facet Marcelo R. S. Melo
Paulo A. Buckup
Osvaldo T. Oyakawa
author_sort Marcelo R. S. Melo
collection DOAJ
description ABSTRACT A new species of Characidium is described based on specimens obtained from the highland streams of the Serra do Mar, Atlantic Forest Biome, in Paraná State, Southern Brazil. The new species is possibly a member member of the C. lauroi group, which is diagnosed by having the isthmus unscaled, bars poorly marked, and spots on sides of body, and is composed by four additional species: C. japuhybense ; C. lauroi ; C. oiticicai ; and C. schubarti . The new species differs from its congeners with naked isthmus, except C. helmeri , by having 15-18 principal caudal-fin rays; and 10-12 pectoral-fin rays; and from C. helmeri , by having a slender body, tip of pectoral fin not reaching origin of pelvic fin, tip of pelvic fin not reaching beyond anus, supraorbital present and well developed, and by lacking vertically elongated dashes on sides of body. The new species is known from tributaries of the rio Jordão, in the rio Iguaçu Basin, and rio Taquari, a tributary of the rio Ribeira de Iguape coastal drainage.
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spelling doaj.art-24a58e853cea46bb832a18d873675ae42022-12-22T00:20:38ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-022414310.1590/1982-0224-20160014S1679-62252016000300210A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern BrazilMarcelo R. S. MeloPaulo A. BuckupOsvaldo T. OyakawaABSTRACT A new species of Characidium is described based on specimens obtained from the highland streams of the Serra do Mar, Atlantic Forest Biome, in Paraná State, Southern Brazil. The new species is possibly a member member of the C. lauroi group, which is diagnosed by having the isthmus unscaled, bars poorly marked, and spots on sides of body, and is composed by four additional species: C. japuhybense ; C. lauroi ; C. oiticicai ; and C. schubarti . The new species differs from its congeners with naked isthmus, except C. helmeri , by having 15-18 principal caudal-fin rays; and 10-12 pectoral-fin rays; and from C. helmeri , by having a slender body, tip of pectoral fin not reaching origin of pelvic fin, tip of pelvic fin not reaching beyond anus, supraorbital present and well developed, and by lacking vertically elongated dashes on sides of body. The new species is known from tributaries of the rio Jordão, in the rio Iguaçu Basin, and rio Taquari, a tributary of the rio Ribeira de Iguape coastal drainage.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000300210&lng=en&tlng=enCharacidium lauroi groupMata AtlânticaRio IguaçuRio Ribeira de IguapeSouth American Darters
spellingShingle Marcelo R. S. Melo
Paulo A. Buckup
Osvaldo T. Oyakawa
A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil
Neotropical Ichthyology
Characidium lauroi group
Mata Atlântica
Rio Iguaçu
Rio Ribeira de Iguape
South American Darters
title A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil
title_full A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil
title_fullStr A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil
title_full_unstemmed A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil
title_short A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil
title_sort new species of characidium reinhardt 1867 characiformes crenuchidae endemic to the atlantic forest in parana state southern brazil
topic Characidium lauroi group
Mata Atlântica
Rio Iguaçu
Rio Ribeira de Iguape
South American Darters
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000300210&lng=en&tlng=en
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