A New Genus and Species of a Minute Suckermouth Armored Catfish (Siluriformes: Loricariidae) from the Rio Tocantins Drainage, Central Brazil: The Smallest Known Loricariid Catfish

被引：14

作者：

Ribeiro, Alexandre C. ^{[1
]}

Lima, Flavio C. T. ^{[2
]}

Pereira, Edson H. L. ^{[3
]}

机构：

[1] Univ Fed Mato Grosso, Dept Biol & Zool, Inst Biociencias, BR-78060900 Cuiaba, MT, Brazil

[2] Univ Sao Paulo, Museu Zool, BR-04263000 Sao Paulo, Brazil

[3] Pontificia Univ Catolica Rio Grande do Sul, Lab Sistemat Vertebrados, BR-90619900 Porto Alegre, RS, Brazil

来源：

COPEIA | 2012年 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

PARANA BASIN; TELEOSTEI; PISCES; HYPOPTOPOMATINAE; OSTARIOPHYSI;

D O I：

10.1643/CI-11-137

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Nannoplecostomus eleonorae, a new genus and species of a miniature suckermouth armored catfish, is described based on specimens collected from the karst region of Sao Domingos, upper Rio Tocantins basin, Goias State, central Brazil. The new genus and species can be diagnosed among loricariids by presenting a unique reductive pattern of lateral dermal plates, with most of the body covered by only three series of plates (viz., dorsal, mid-ventral, and ventral). Based on the available published phylogenetic studies for the family, we provisionally consider Nannoplecostomus eleonorae as being an incertae sedis taxon within Loricariidae. Achieving a maximum standard length of 22.2 mm SL, Nannoplecostomus eleonorae is the smallest known loricariid catfish, and a list of the remaining smallest loricariids is provided.

引用

页码：637 / 647

页数：11

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