A new species of Characidium (Characiformes: Crenuchidae) from the upper rio Sao Francisco basin, Miaas Gerais, Brazil

被引：4

作者：

Zanata, Angela M. ^{[1
]}

Ribeiro, Thiago C. ^{[2
]}

Araujo-Porto, Felipe A. ^{[3
]}

Pessali, Tiago C. ^{[4
]}

Oliveira-Silva, Leonardo ^{[1
]}

机构：

[1] Univ Fed Bahia, Lab Ictiol, Programa Posgrad Biodiversidade & Evolucao, Inst Biol, Rua Barao de Jeremoabo 147, BR-40170290 Salvador, BA, Brazil

[2] Ctr Fed Educ Tecnol Minas Gerais, Dept Ciencias Biol, Ave Amazonas 5253, BR-30421169 Belo Horizonte, MG, Brazil

[3] Ctr Fed Educ Tecnol Minas Gerais, Dept Ciencia & Tecnol, Ave Amazonas 5253, BR-30421169 Belo Horizonte, MG, Brazil

[4] Pontificia Univ Catolica Minas Gerais, Museu Ciencias Nat, Ave Dom Jose Gaspar 290, BR-30535901 Belo Horizonte, MG, Brazil

来源：

ZOOTAXA | 2020年 / 4790卷 / 03期

关键词：

Characidiinae; endemism; Neotropical region; no Cipo; taxonomy; DAS VELHAS BASIN; REINHARDT; FISHES; HEADWATERS; BAHIA;

D O I：

10.11646/zootaxa.4790.3.5

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Characidium cacah, new species, apparently endemic to the rio das Velhas sub-basin, upper rio Sao Francisco basin, Brazil, is described. The new species is easily distinguished from congeners, except C. chicoi, C. helmeri, C. mirim, C. nana, C. nupelia, C. stigmosum and C. xavante, by having an incomplete lateral line and for lacking an adipose fin. The new species can be diagnosed from the aforementioned species by a series of characters, including the presence of 12 circumpeduncular scales, the isthmus completely scaled, a thin inconspicuous or dashed midlateral dark stripe, the absence of a conspicuous peduncular blotch, and humeral blotch and basicaudal spot variably marked.

引用

页码：505 / 514

页数：10

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