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| Lima,Sergio M. Q.; Neves,Cinara P.; Campos-Paiva,Rafael M.. |
| Ituglanis agreste, a new species of catfish, is described from a tributary stream of the rio Gongogi drainage, rio de Contas basin, Bahia State, northeastern Brazil, from a transition area between the Atlantic Rain Forest and the semi-arid Caatinga savanna. This species is distinguished from its congeners by the following characters: elongate interopercle plate with high number of odontodes (26-30), high number of ribs (5-6), fewer vertebrae (36), number of branchiostegal rays (7), number of pectoral-fin rays (i,6) and absence of s1 pore. Comparisons with other Ituglanis species and putative plesiomorphic characters are presented. Some comments about conservation of Ituglanis species from northeastern Brazil are also made. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Forest; Biome transition; Semi-arid Caatinga; Serra da Ouricana; Taxonomy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300513 |
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| Ramos,Telton Pedro A.; Barros-Neto,Luciano F.; Britski,Heraldo A.; Lima,Sergio M. Q.. |
| A new species of Parotocinclus is described from the upper rio Piranhas-Açu basin, northeastern Brazil. The new species differs from all its congeners, except P. bidentatus, P. muriaensis (both from rio Paraíba do Sul basin, southeastern Brazil), and P. spilurus (rio Jaguaribe basin, northeastern Brazil) by presenting the adipose fin rudimentary or absent. The new species differs from P. bidentatus, P. muriaensis, and P. spilurus mainly by presenting the abdomen region extensively naked, with few reduced rounded dermal platelets between the pectoral girdle and the anus. Parotocinclus seridoensis is probably an endemic species of the semi-arid Caatinga, region where the genus presents high species richness. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mid-Northeastern Caatinga region; Rio São Francisco transposition; Semi-arid Caatinga; Taxonomy; Temporary rivers. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000400787 |
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