2018
DOI: 10.3897/zse.94.22106
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Abstract: Charax awa sp. n. is herein described from the Rio Mearim, Rio Munim and Rio Turiaçu basins, three coastal river basins of northeastern Brazil located between the Rios Gurupi and Parnaíba basins. These have a complex and still poorly known biogeographic history. This region is ecologically extremely relevant since it comprises three of the main Brazilian biomes, as well as, transition zones between them: Amazônia, Brazilian Cerrado and Caatinga. Therefore, this area has faunal and floristic representatives of … Show more

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Cited by 9 publications
(15 citation statements)
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“…When comparing the present survey with inventories from other river drainages from the Maranhão State, we can conclude that the freshwater fish fauna of the state is probably still underestimated, as argued by Piorski (2010) and Guimarães et al (2018a). In hydrographic terms, the PNLM boundaries include the Preguiças and Periá river basins.…”
Section: Discussionsupporting
confidence: 58%
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“…When comparing the present survey with inventories from other river drainages from the Maranhão State, we can conclude that the freshwater fish fauna of the state is probably still underestimated, as argued by Piorski (2010) and Guimarães et al (2018a). In hydrographic terms, the PNLM boundaries include the Preguiças and Periá river basins.…”
Section: Discussionsupporting
confidence: 58%
“…According to Rosa et al (2003), the fish fauna on Maranhão-Piauí ecoregion was historically pointed out as poorly endemic. Otherwise, the low level of endemism recorded during the past decades would be related to less sampling effort on the whole region (Piorski 2010, Ramos et al 2014, Guimarães et al 2018a. Several species in the Maranhão-Piauí rivers are known to occur along the Amazon basin (including coastal rivers in Suriname and the Guianas), a distribution pattern suggested by Barros who observed a predominance of Amazonian species in the Itapecuru basin, as well as corroborated for some putative species by Guimarães et al (2016Guimarães et al ( , 2017a.…”
Section: Discussionmentioning
confidence: 99%
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“…The State of Maranhão stands out for presenting few studies related to its freshwater ichthyofauna, especially in the area of taxonomy, causing gaps and lack of information related to the taxonomy and systematics of the species and groups, species composition, geographical distribution and biogeography of the ichthyofauna from the State (Guimarães et al 2018). Biodiversity estimates and inventories of freshwater fishes have been continually published in the last decades for water bodies occurring in the State of Maranhão (e.g.…”
Section: Introductionmentioning
confidence: 99%