New species of Bryconamericus Eigenmann (Characiformes: Characidae) from the rio Teles Pires, rio Tapajos basin, central Brazil

被引：8
|
作者：
Dagosta, Fernando C. P. [1 ]
Netto-Ferreira, Andre L. [2 ]
机构：
[1] Univ Sao Paulo, Museu Zool, PPG Sistemat Taxon Anim & Biodiversidade, BR-04218970 Sao Paulo, Brazil
[2] Fed Univ Para, Inst Ciencias Biol, BR-66075110 Belem, Para, Brazil
来源：
ZOOTAXA | 2015年 / 3911卷 / 03期
基金：
巴西圣保罗研究基金会;
关键词：
Creagrutus; Stevardiinae; Brazilian shield; Amazon; taxonomy; OSTARIOPHYSI CHARACIFORMES; TELEOSTEI CHARACIFORMES; PHYLOGENETIC ANALYSIS; FISHES;
D O I：
10.11646/zootaxa.3911.3.9
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
A new species of Bryconamericus is described from the rio Teles Pires, a tributary of the rio Tapajos. The new taxon can be distinguished from its congeners by having a short anal fin with 11-13 branched rays, two maxillary teeth, four outer premaxillary teeth, and 34-38 perforated lateral-line scales. Other diagnostic characters of the species are the absence of a caudal-peduncle spot and the presence of a pigmented vertical band at the caudal-fin rays base. The phylogenetic position of the new species is inferred based in two available phylogenetic hypotheses, and a discussion on its generic placement is provided.
引用
收藏
页码：433 / 442
页数：10
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