Redescription of Hisonotus notatus Eigenmann & Eigenmann, 1889 (Loricariidae: Hypoptopomatinae), the type species of the genus, and description of a n

[Acanthicus]

Redescription of Hisonotus notatus Eigenmann & Eigenmann, 1889 (Loricariidae: Hypoptopomatinae), the type species of the genus, and description of a new species from coastal drainages of southeastern Brazil

Quelle: https://www.scielo.br/scielo.php?scr...rm=iso&tlng=en

by: Fernanda O. Martins, Francisco Langeani

Abstract:
Our analyses showed that the type series of Hisonotus notatus , type species of the genus, is mixed, composed by two different species. Based on that, we redescribe H. notatus with the designation of a lectotype, restricting the species to rio São João drainage and other small coastal drainages running to the BaÃ*a de Guanabara and to the BaÃ*a de Sepetiba in Rio de Janeiro State. We also describe a new species of Hisonotus from drainages of the rio ParaÃ*ba do Sul, Lagoa Feia, rio Macaé, and coastal rivers of EspÃ*rito Santo State, from rio Itabapoana to rio Doce basin. These two species are sister-taxa and can be distinguished by the number of plates in the mid-dorsal series.

Neue Art: Hisonotus thayeri