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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A new species of Amazonian bluntnose knifefish Brachyhypopomus (Gymnotiformes: Hypopomidae), with comments on its phylogenetic position

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Author(s):
Dutra, Guilherme Moreira [1] ; Peixoto, Luiz Antonio Wanderley [1] ; Ochoa, Luz Eneida [1] ; Ohara, Willian Massaharu [2] ; de Santana, Carlos David [3] ; Menezes, Naercio Aquino [1] ; Datovo, Alessio [1]
Total Authors: 7
Affiliation:
[1] Univ Sao Paulo, Museu Zool, Av Nazare 481, BR-04263000 Sao Paulo, SP - Brazil
[2] Univ Fed Rondonia, Dept Engn Pesca, Rua Paz 4373, BR-76916000 Presidente Medici, RO - Brazil
[3] Natl Museum Nat Hist, Dept Vertebrate Zool, Div Fishes, MRC 159, POB 37012, Washington, DC 20013 - USA
Total Affiliations: 3
Document type: Journal article
Source: SYSTEMATICS AND BIODIVERSITY; v. 19, n. 4 JAN 2021.
Web of Science Citations: 0
Abstract

A new species of the bluntnose knifefish genus Brachyhypopomus Mago-Leccia is described from headwaters of upper Rio Juruena, and upper Rio Machado, Amazon basin, Brazil. The new species differs from all congeners by the absence of a small independent ossification of the Weberian complex located posterodorsally to the supraoccipital. It can be additionally distinguished from its congeners by a set of characters in combination that includes: absence of accessory electric organ over the opercular region, absence of a prominent pale uninterrupted middorsal stripe on body, presence of scales on the entire middorsal region of body, dorsal rami of the recurrent branch of anterior lateral-line nerve not externally visible, presence of a dark suborbital stripe, and possession of 8-10 scale rows above the lateral line. The phylogenetic position of the new species is inferred by its inclusion in a total-evidence matrix with data from morphology, mitochondrial genes, and nuclear genes of all species. The new species is apparently restricted to upland tributaries of the Chapada dos Parecis, more than 500 m high. Comments on the occurrence of fish species in multiple independent basins at Chapada dos Parecis are also provided. (AU)

FAPESP's process: 18/05084-1 - Evolution of the skeletal musculature of the Gymnotiformes (Teleostei: Ostariophysi)
Grantee:Luiz Antonio Wanderley Peixoto
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 18/23883-9 - Electric fishes of the genus Sternarchorhynchus, a case of adaptative irradiation in continental scale? A phylogenomic and morphological approach
Grantee:Luz Eneida Ochoa Orrego
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 16/19075-9 - Diversity and evolution of Gymnotiformes (Teleostei, Ostariophysi)
Grantee:Naercio Aquino Menezes
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 18/09445-9 - Systematics of the electric fishes of the genus Eigenmannia Jordan & Evermann (Gymnotiformes: Sternopygidae): an integrated approach to morphological and molecular data
Grantee:Guilherme Moreira Dutra
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 11/50282-7 - An inventory of the Characiform fish fauna (Teleostei, Ostariophysi) from South America
Grantee:Naercio Aquino Menezes
Support Opportunities: BIOTA-FAPESP Program - Thematic Grants