南美库维属（Cuvier，1816年）的修订，及四个新物种的描述（硬骨鱼纲：脂鲤科）

Revision of the South American genus Cuvier, 1816 (Teleostei: Characidae) with description of four new species.

作者信息

Silva Gabriel S C, Melo Bruno F, Oliveira Claudio, Benine Ricardo C

机构信息

Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, R. Prof. Dr. Antonio C. W. Zanin, s/n, Rubião Jr, 18618-689, Botucatu, São Paulo, Brazil..

出版信息

Zootaxa. 2016 Nov 27;4200(1):zootaxa.4200.1.1. doi: 10.11646/zootaxa.4200.1.1.

DOI:10.11646/zootaxa.4200.1.1

PMID:27988638

Abstract

The systematics of the characid genus Tetragonopterus is reviewed based on morphological and molecular data of specimens from its entire geographical range encompassing all major South American river drainages from Orinoco basin southward to the La Plata basin. Eight previously described species (T. anostomus, T. araguaiensis, T. argenteus, T. carvalhoi, T. chalceus, T. denticulatus, T. georgiae n. comb., and T. rarus) are recognized as valid, four of which are redescribed (T. argenteus, T. chalceus, T. georgiae, and T. rarus), and four new species from the Brazilian Shield in the Amazon and São Francisco river basins are herein described. We also provide evidence for the reallocation of Moenkhausia georgiae into Tetragonopterus and recognize T. akamai as junior synonym of T. anostomus. DNA barcodes of Tetragonopterus revealed genetic support for each recognized species and provided valuable population-level information within T. argenteus, T. chalceus, T. georgiae, and T. rarus.

摘要

基于对来自整个地理分布范围的标本的形态学和分子数据，对脂鲤科的 Tetragonopterus 属进行了系统学研究，其地理分布范围涵盖了从奥里诺科河流域向南至拉普拉塔河流域的所有南美洲主要河流排水系统。八个先前描述的物种（T. anostomus、T. araguaiensis、T. argenteus、T. carvalhoi、T. chalceus、T. denticulatus、T. georgiae n. comb. 和 T. rarus）被确认为有效物种，其中四个物种（T. argenteus、T. chalceus、T. georgiae 和 T. rarus）被重新描述，并且本文描述了来自亚马逊河和圣弗朗西斯科河流域巴西地盾的四个新物种。我们还提供了将 Moenkhausia georgiae 重新划归到 Tetragonopterus 属的证据，并将 T. akamai 认定为 T. anostomus 的次异名。Tetragonopterus 的 DNA 条形码揭示了对每个已确认物种的遗传支持，并提供了 T. argenteus、T. chalceus、T. georgiae 和 T. rarus 内有价值的种群水平信息。