Two new species of the Hypostomus cochliodon group (Siluriformes: Loricariidae) from the rio Negro basin in Brazil

被引：24

作者：

Carvalho, Pedro Hollanda ^{[1
]}

Lima, Flavio C. T. ^{[1
]}

Zawadzki, Claudio H. ^{[2
]}

机构：

[1] Univ Sao Paulo, Museu Zool, BR-04299970 Sao Paulo, Brazil

[2] Univ Estadual Maringa, BR-87020900 Maringa, Parana, Brazil

来源：

NEOTROPICAL ICHTHYOLOGY | 2010年 / 8卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

Hypostomus kopeyaka; Hypostomus weberi; Hypostomus micromaculatus; Rio Tiquie; Amazon basin; BIOGEOGRAPHY; CATFISH;

D O I：

10.1590/S1679-62252010000100006

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Two new species of Hypostomus are described from the middle and upper rio Negro in Brazil. They are assigned to the Hypostomus cochliodon group (sensu Armbruster, 2003) by possessing few spoon-shaped teeth, and dentary angle averaging less than 80 degrees. Hypostomus kopeyaka is described from the rio Tiquie, a tributary of the rio Uaupes, upper rio Negro basin, presents a unique color pattern among the Hypostomus species belonging to the Hypostomus cochliodon group, consisting of conspicuously horizontally elongated, closely-set black spots over the entire dorsal and lateral surfaces of the body. Hypostomus weberi is described from the middle rio Negro and can be distinguished from all remaining Hypostomus species belonging to the Hypostomus cochliodon group by possessing a unique color pattern consisting in large, rounded, widely-spaced black spots over body and fins.

引用

页码：39 / 48

页数：10

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