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| Melanorivulus larissae Ywamoto, Nielsen & Oliveira, 2020 |
Abstract
A new species of the genus Melanorivulus belonging to the Melanorivulus pictus species group is herein described, from a tributary of the Rio Grande, Rio Paraná basin, São Paulo State, Brazil. The new species can be distinguished from all other species of the Melanorivulus pictus species group by the unique presence of sides of body of males light bluish gray with 10–12 oblique red bars, 8 of which chevron-like, bifurcated and complete, i.e., running from dorsum to ventral area, and 2–4 incomplete, with vertices of the chevron-like bars along midbody, pointing forward. Comments on the putative relationships of the new species, as well as concerning its conservation status, are presented.
Keywords: Cyprinodontiformes, Rio Grande basin, Rivulus, Melanorivulus apiamici, Melanorivulus leali, Cerrado, Killifishes
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| Melanorivulus larissae, new species, living holotype, male, ZUEC 17154, male, 23.4 mm SL. Photo by Eric V. Ywamoto. |
Etymology. Named in honor of Larissa da Silva Sobral, daughter of the discoverer of the species.
Eric Venturini Ywamoto, Dalton Tavares Bressane Nielsen and Claudio Oliveira. 2020. Description of A New Species of the Melanorivulus pictus Species-group (Cyprinodontiformes: Rivulidae) from the Rio Paraná Basin in Brazil. Zootaxa. 4852(1); 125–132. DOI: 10.11646/zootaxa.4852.1.6
