Two new species of Heptapterus from the Uruguay River basin
Posted: 24 Jan 2019, 15:33
Dario R. Faustino‐Fuster, Flávio A. Bockmann, & Luiz R. Malabarba. (2019). Two new species of Heptapterus (Siluriformes: Heptapteridae) from the Uruguay River basin, Brazil. J. Fish Biology, 2019, doi: 10.1111/jfb.13908. First published: 23 January.
https://doi.org/10.1111/jfb.13908
https://doi.org/10.1111/jfb.13908
Abstract
As part of an ongoing taxonomic revision of the genus from the Laguna dos Patos and Uruguay River drainages and Atlantic coastal streams of southern Brazil and Uruguay, two new species closely related to were identified. Both species are endemic to small tributaries of the Uruguay River. The two new species are distinguished from each other and from other species of Heptapterus by arrangement of cephalic and trunk laterosensory systems, number of vertebrae and number of dorsal, pectoral and anal‐fin rays. Phylogenetic analyses of mitochondrial DNA (coI and cytb) sequence data further supports distinctiveness of the two new species.
