A new Hyphessobrycon (Characiformes: Acestrorhamphidae) from the rio Mamuru basin, Amazonas State, Brazil
Year: 2025
Type: article
Abstract: A new species of Hyphessobrycon from the rio Mamuru basin, Pará State, Brazil, is described. The new species is similar to two congeners, Hyphessobrycon hildae and Hy. taguae, and to a non-congener, Hemigrammus bellottii, by the presence of a conspicuous, vertically-elongated humeral blotch and the lack of other conspicuous dark color markings on body and fins, and by the presence, in life, of a bicolor longitudinal pattern dorsal to the longitudinal dark stripe composed by a dorsal thin red stripe and a ventral thin iridescent stripe. It differs from the abovementioned species by the shape of the humeral blotch. DNA barcoding methodology also distinguished the new species from He. bellottii sampled populations by 14.97 to 16.8% genetic distance in the cytochrome c oxidase I gene, and indicate the species as part of the subfamily Hyphessobryconinae and sister species of Hyphessobrycon montagi with genetic distance of 9.33%. Comments on the taxonomic status of Hy. hildae and Hy. taguae are made.
Source: Neotropical Ichthyology
Language: English
Subfield: Nature and Landscape Conservation
Field: Environmental Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $76
Awards: G1466975044, G1777310179, G2249104250, G2304745180, Systematics of tetras (genera Hemigrammus, Hyphessobrycon, Thayeria, Parapristella, and Bryconella), with emphasis on the species from the northern cis-andean South America., G2476417704, G255585711, G3121208618, G364149528, G3947385994, G4198063923, G4654639172, G5282759127, G5301668382, G5676312954, G6004424925, G8425440788, G968085512
OpenAlex ID: W4414607966