Registro completo |
Provedor de dados: |
Neotropical Ichthyology
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País: |
Brazil
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Título: |
Systematics of the neotropical fish subfamily Glandulocaudinae (Teleostei: Characiformes: Characidae)
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Autores: |
Menezes,Naércio A.
Weitzman,Stanley H.
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Data: |
2009-09-01
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Ano: |
2009
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Palavras-chave: |
South America
Lophiobrycon
Glandulocauda
Mimagoniates
Taxonomy
Biogeography
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Resumo: |
The systematics of the Glandulocaudinae is reviewed in detail and justification for the recognition of the group as a subfamily is discussed. The subfamily Glandulocaudinae consists of three genera: Lophiobrycon with one species plesiomorphic in some anatomical features but some others exclusively derived relative to the species in the other genera; Glandulocauda with two species intermediate in phylogenetic derivation; and Mimagoniates with seven species (one new), all more phylogenetically derived concerning their pheromone producing caudal-fin organs and with other anatomical characters presumably more derived than in the species of the other genera. Glandulocauda melanogenys Eigenmann, 1911, is considered a junior synonym of Hyphessobrycon melanopleurus Ellis, 1911. A replacement name, Glandulocauda caerulea Menezes & Weitzman, is proposed for G. melanopleura Eigenmann, 1911. Gland cells found in the caudal-fin organs of all species are histologically indistinguishable from club cells and probably secrete a pheromone during courtship. The club cells are associated with somewhat modified to highly derived caudal scales forming a pheromone pumping organ in the more derived genera and species. This subfamily is distributed in freshwaters of eastern and southern Brazil, Paraguay, and northeastern Uruguay.
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Tipo: |
Info:eu-repo/semantics/article
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Idioma: |
Inglês
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Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000300002
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Editor: |
Sociedade Brasileira de Ictiologia
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Relação: |
10.1590/S1679-62252009000300002
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Formato: |
text/html
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Fonte: |
Neotropical Ichthyology v.7 n.3 2009
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Direitos: |
info:eu-repo/semantics/openAccess
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