Cambeva cauim, new species from the Rio Iguacu basin

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Cambeva cauim, new species from the Rio Iguacu basin

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dos Reis, R. B., Ferrer, J., & da Graça, W. J. A new species of Cambeva (Siluriformes, Trichomycteridae) from the Rio Iguaçu basin, Paraná State, Brazil and redescription of Cambeva stawiarski (Miranda Ribeiro 1968). Journal of Fish Biology.
https://doi.org/10.1111/jfb.14947
https://onlinelibrary.wiley.com/doi/abs ... /jfb.14947
Abstract
This work aimed to describe Cambeva cauim, sp. nov., endemic to the Rio Iguaçu basin, Brazil and redescribe Cambeva stawiarski using external and internal morphological data through the revision of specimens deposited in fish collections including the type material. In this process, we have also added comments on the possible type locality of C. stawiarski. Cambeva cauim, sp. nov. and C. stawiarski are mainly diagnosed by the anatomy and number of procurrent caudal-fin rays in addition to colouration and several meristic and morphometric characters. Both species are compared with other possibly related species and their synapomorphic characters are discussed. Cambeva cauim, sp. nov. and C. stawiarski along with other eight congeners are endemic to the Rio Iguaçu basin, a high impacted freshwater region which could be considered as a biodiversity hotspot to the genus.
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