Lima Flávio C T, Britto Marcelo R
Museu de Zoologia da Universidade Estadual de Campinas "Adão José Cardoso", Caixa Postal 6109, 13083-863, Campinas, SP, Brazil..
Zootaxa. 2020 Feb 21;4742(3):zootaxa.4742.3.6. doi: 10.11646/zootaxa.4742.3.6.
A new Corydoras is described from the rio Juruena system, upper rio Tapajós drainage, Amazon basin, Brazil. The new Corydoras is distinguished from all congeners by presenting a combination of a conspicuous broad vertical dark bar on head, at the level of the eye (mask), an overall light background color without large blotches or stripes on body or fins, the presence of two to four small dark blotches along the midline, and pectoral spine with antrorse serrations on its posterior margin. Males of the new species possess numerous, well-developed odontodes over the lateral portions of head, pectoral girdle, and pectoral spines, an uncommon feature for the genus. The new species is hypothesized to belong, within the genus Corydoras, either to Lineage 6 or Lineage 9.
一种新的兵鲶属鱼类在巴西亚马逊河流域塔帕若斯河上游流域茹鲁埃纳河水系被发现并加以描述。这种新的兵鲶属鱼类与所有同属鱼类的区别在于,它具有以下特征组合:头部眼睛水平位置有一条明显宽阔的垂直深色条纹(面罩);整体体色浅,身体和鳍上没有大的斑点或条纹;沿中线有两到四个小的深色斑点;胸鳍棘后缘有向前的锯齿。新物种的雄性在头部侧面、胸带和胸鳍棘上有许多发育良好的小齿,这在该属中并不常见。据推测,这个新物种在兵鲶属内属于谱系6或谱系9。