Consulta: subjectFacets:"Priocharax"
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Data/hora: 02/06/2024 16:08:01

A new genus and species of characid fish from the Amazon basin: the recognition of a relictual lineage of characid fishes (Ostariophysi: Cheirodontinae: Cheirodontini)
Provedor de dados: Neotropical Ichthyology
Autores: Bührnheim,Cristina M.; Carvalho,Tiago P.; Malabarba,Luiz R.; Weitzman,Stanley H.
Amazonspinther dalmata, a new miniature characid from the streams of rio Purus and rio Madeira, right bank tributaries of the rio Amazonas, is described as a new genus and species of the subfamily Cheirodontinae. The unique characters of the new genus and species are the three remarkable black blotches on the base of the dorsal, anal, and caudal fins, the anteriormost proximal radial of the anal fin with an anteriorly extended lamina entering the abdominal cavity, and the extremely elongate caudal peduncle. The reduced number of ventral procurrent caudal-fin rays (7-9), and the hemal spines of only posterior one, two, or sometimes three caudal vertebrae directly articulating with the ventral procurrent caudal-fin rays further diagnoses the new taxon from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phylogeny; Biogeography; Miniaturization; Spintherobolus; Priocharax.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000400016