A new species of Eigenmannia Jordan & Evermann (Gymnotiformes: Sternopygidae) from rio Tapajos, Brazil, with discussion on its species group and the myology within Eigenmanniinae

被引：11
|
作者：
Wanderley Peixoto, Luiz Antonio [1 ]
Ohara, Willian M. [1 ,2 ]
机构：
[1] Univ Sao Paulo, Museu Zool, Secao Peixes, Sao Paulo, SP, Brazil
[2] Univ Fed Rondonia, Dept Engn Pesca, Presidente Medici, Rondonia, Brazil
来源：
PLOS ONE | 2019年 / 14卷 / 08期
基金：
巴西圣保罗研究基金会;
关键词：
ELECTROSENSORY NERVOUS-SYSTEM; ELECTRIC KNIFEFISHES; FISHES OSTEICHTHYES; COMPARATIVE ANATOMY; GENUS; TELEOSTEI; BASIN; REDESCRIPTION; MORPHOLOGY; EVOLUTION;
D O I：
10.1371/journal.pone.0220287
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A new species of Eigenmannia is described from the rio Mutum, tributary of upper rio Juruena, rio Tapajos basin, Comodoro, Mato Grosso, Brazil. The new species is distinguished from all congeners by coloration pattern, position of the mouth, number of scales rows above lateral line, number of premaxillary and dentary teeth, number of precaudal vertebrae, orbital diameter, mouth width, relative depth of posterodorsal expansion on infra orbitals 1+2 and relative size of coronomeckelian bone. Comments on potentially useful characters in phylogenetic studies derived from musculature, discussion on Eigenmannia species-group and the first dichotomous key for Eigenmannia are provided.
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页数：30
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