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| Loureiro,Marcelo; Duarte,Alejandro; Zarucki,Matías. |
| A new species of Austrolebias is described based on individuals from the middle and upper río Negro (río Uruguay basin) and río Yaguarón (Patos-Merín system). The new species can be differentiated from all other species of the genus by the unique presence in males of uniform bluish gray pigmentation on flanks (without vertical bands) and unpaired fins. The new species is also distinguished by the combination of characters associated with a reduction of the squamation of the abdominal, preopercular, and opercular regions. The new species presents some morphological characteristics similar to A. gymnoventris and A. luteoflammulatus. The distribution of the new species is concordant with three other species of Austrolebias and may represent a case of drainage... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Annual fishes; Biogeography; Systematics. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200010 |
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| Loureiro,Marcelo; Sá,Rafael de; Serra,Sebastián W.; Alonso,Felipe; Lanés,Luis Esteban Krause; Volcan,Matheus Vieira; Calviño,Pablo; Nielsen,Dalton; Duarte,Alejandro; Garcia,Graciela. |
| ABSTRACT The family Rivulidae is the fourth most diverse clade of Neotropical fishes. Together with some genera of the related African family Nothobranchiidae, many rivulids exhibit a characteristic annual life cycle, with diapausing eggs and delayed embryonic development, which allows them to survive in the challenging seasonal ponds that they inhabit. Rivulidae also includes two species known as the only the self-fertilizing vertebrates and some species with internal fertilization. The first goal of this article is to review the systematics of the family considering phylogenetic relationships and synapomorphies of subfamilial clades, thus unifying information that is dispersed throughout the literature. From this revision, it is clear that phylogenetic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cynolebiidae; Killifish; Neotropical; Total evidence. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000300202 |
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