Datovo Aléssio, Aquino Pedro De Podestà Uchôa De, Langeani Francisco
Museu de Zoologia da Universidade de São Paulo, Laboratório de Ictiologia; Av. Nazaré, 481, 04263-000, São Paulo, SP, Brazil.; Email:
Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Zoologia; Campus Universitário Darcy Ribeiro, 70910-900, Brasília, DF, Brazil; Email: unknown.
Zootaxa. 2016 Sep 29;4171(3):439-458. doi: 10.11646/zootaxa.4171.3.2.
Ituglanis goya, new species, is described from the Paranaíba and Tocantins river drainages, central Brazil. This is the first species of the genus described for the Upper Paraná system and the second epigean Ituglanis for the Tocantins basin. The new species is distinguished from its congeners by the combination of a color pattern formed by longitudinal stripes and spots, absence of the anterior cranial fontanel, pattern of the cephalic laterosensory system and several fin-ray counts. Ituglanis goya exhibits morphological features that oppose the traditional hypotheses of alignment of the genus with the TSVSG clade of Trichomycteridae. These and other issues concerning the systematics of Ituglanis and the Trichomycterinae are critically discussed.
伊图格拉尼斯戈亚新物种，描述于巴西中部的巴拉奈巴河和托坎廷斯河流域。这是上巴拉那河水系描述的该属首个物种，也是托坎廷斯河流域的第二个地表伊图格拉尼斯物种。新物种与其同属物种的区别在于，它具有由纵向条纹和斑点构成的体色模式、无前囟、头部侧线感觉系统模式以及若干鳍条数量。伊图格拉尼斯戈亚呈现出的形态特征与该属与毛鼻鲶科TSVSG分支对齐的传统假说相悖。文中对这些以及其他有关伊图格拉尼斯属和毛鼻鲶亚科系统分类的问题进行了批判性讨论。
