Geophagus diamantinensis, a new species of the G. brasiliensis species group from Chapada Diamantina, north-eastern Brazil (Cichlidae: Geophagini)

被引：0
|
作者：
Mattos, Jose L. O. [1 ]
Costa, Wilson J. E. M. [1 ]
Santos, Alexandre C. A. [2 ]
机构：
[1] Univ Fed Rio de Janeiro, Dept Zool, Lab Sistemat & Evolucao Peixes Teleosteos, BR-21944970 Rio De Janeiro, Brazil
[2] Univ Estadual Feira de Santana, Lab Ictiol, BR-44036900 Feira De Santana, BA, Brazil
来源：
ICHTHYOLOGICAL EXPLORATION OF FRESHWATERS | 2015年 / 26卷 / 03期
关键词：
RIO PARAGUACU; BAHIA; MORPHOLOGY; PHYLOGENY; TELEOSTEI;
D O I：
暂无
中图分类号：
Q17 [水生生物学];
学科分类号：
071004 ;
摘要：
Geophagus diamantinensis, new species, is described from the Paraguacu River basin, endemic from Chapada Diamantina region, Bahia state in north-eastern Brazil. It is recognized by both a tree-based and a character-based approaches for species delimitation, using mt-DNA and morphological data, respectively. Geophagus diamantinensis is distinguished from all other species of the G. brasiliensis species group by a deep urohyal bone, characters of colour pattern and head slender. In addition, Geophagus diamantinensis can be distinguished from G. itapicuruensis by having more dorsal-fin spines and from G. obscurus by having subterminal mouth.
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收藏
页码：209 / 220
页数：12
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