New species of glass knifefish genus Eigenmannia (Gymnotiformes: Sternopygidae) with comments on the morphology and function of the enlarged cephalic lateral-line canals of Sternopygidae

Author(s)

Peixoto, Luiz A. W. ^[1] ; Pastana, Murilo N. L. ^[2] ; Ballen, Gustavo A. ^[1]

Affiliation

^[1] Univ Sao Paulo, Museu Zool, Secao Peixes, Sao Paulo, SP - Brazil

^[2] Smithsonian Inst, Div Fishes, Dept Vertebrate Zool, Natl Museum Nat Hist, Washington, DC 20560 - USA

• Document type: Journal article
• Source: Journal of Fish Biology; v. 98, n. 1, p. 142-153, JAN 2021.
• Web of Science Citations: 0

Abstract

A new species ofEigenmanniais described from the Rio Parana (the Grande, Paranapanema and Tiete basins). This new species is distinguished from all congeners by colouration pattern, position of the mouth, relative depth of posterodorsal expansion on infraorbitals 1 + 2, number of teeth, osteological features, number of rows of scales above lateral line (LL) and morphometric data. Comments on the widened cephalic lateral-line canals of Sternopygidae and a dichotomous key to the species ofEigenmanniafrom the Rio Parana Basin are provided. (AU)

• FAPESP's process: 14/11558-5 - Fossil freshwater fishes and the biogeography of Northern South America
• Grantee: Gustavo Adolfo Ballen Chaparro
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• 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: 16/02253-1 - Paleoichthyology of the Sincelejo formation (late Pliocene) in northern Colombia
• Grantee: Gustavo Adolfo Ballen Chaparro
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate (Direct)
• FAPESP's process: 16/19075-9 - Diversity and evolution of Gymnotiformes (Teleostei, Ostariophysi)
• Grantee: Naercio Aquino Menezes
• Support Opportunities: Research Projects - Thematic Grants