Data/hora: 02/06/2024 03:38:11

Provedor de dados: | 83
País: | Brazil
Título: | New species of thorny catfish, genus Leptodoras Boulenger (Siluriformes: Doradidae), from Tapajós and Xingu basins, Brazil
Autores: | Birindelli,José L. O.; Sousa,Leandro M.; Pérez,Mark H. Sabaj.
Data: | 2008-01-01
Ano: | 2008
Palavras-chave: | Leptodoras oyakawai; Central Brazil; Rio Jamanxim; Rio Teles Pires; Rio Culuene.
Resumo: | A new species of thorny catfish (family Doradidae) is described as a member of genus Leptodoras Boulenger by having a modified oral hood and first gill arch with enlarged accessory lamellae extending well onto medial face of gill filaments. The new species is distinguished by three characteristics unique within Leptodoras: gas bladder moderately sized (not reduced) with simple walls (diverticula absent), and paired bony capsules on anteriormost vertebrae reduced to paired cup-like laminar ossifications separated by triangular septum. The new species was discovered from material recently collected in the Tapajós basin at Serra do Cachimbo and in the headwaters of rio Xingu. The species description is supplemented by a detailed osteological description, discussion on its placement among congeners, and a re-evaluation of the diagnosis of Leptodoras and its relationships with sister taxon Anduzedoras oxyrhynchus. In addition, the distributions of several species of Leptodoras are expanded based on recent collecting efforts and identification of museum specimens not previously studied.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000300020
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/S1679-62252008000300020
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.6 n.3 2008
Fonte: | info:eu-repo/semantics/openAccess