Description of a new species of Microglanis (Siluriformes: Pseudopimelodidae) from the Amazon basin, Amazonas State, Brazil

Jarduli, Lucas Ribeiro; Shibatta, Oscar Akio

doi:10.1590/s1679-62252013000300004

Cited by 5 publications

(3 citation statements)

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“…The latter condition is usually present in adults of some species, as seen in M. poecilus Eigenmann, 1912, M. iheringi Gomes, 1946(Mees, 1974, M. pellopterygius Mees, 1978(Mees, 1978, M. robustus Ruiz & Shibatta, 2010(Ruiz & Shibatta, 2010, M. xylographicus Ruiz & Shibatta, 2011, M. oliveirai Ruiz & Shibatta, 2011(Ruiz & Shibatta, 2011, M. lundbergi (Jarduli & Shibatta, 2013), and M. leniceae. As noted in juvenile of M. maculatus Shibatta, 2014(Shibatta, 2014, the hooks of the anterior margin of the pectoral fin spine are retrorse in the beginning with addition of antrorses hooks throughout the development.…”

Section: Discussionmentioning

confidence: 99%

A new species of bumblebee catfish of the genus Microglanis (Siluriformes: Pseudopimelodidae) from the upper rio Paraguay basin, Brazil

Shibatta

2016

Neotrop. ichthyol.

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A new species of Microglanis from upper rio Paraguay basin is described. The species differs from congeners by the following combination of characters: deeply forked caudal fin with pointed lobes, bifurcated hook between antrorse and retrorse hooks on anterior margin of pectoral-fin spine, lateral line relatively long, surpassing the vertical through end of dorsal fin but not reaching adipose fin, color pattern of dorsal region of head dark brown with a restrict thin light area between anterior nostril and eye, broad light stripe on supraoccipital region. Uma nova espécie de Microglanis da bacia do alto rio Paraguai é descrita. A espécie difere das congêneres pela seguinte combinação de caracteres: nadadeira caudal profundamente furcada com lobos pontiagudos, serra bifurcada entre as serras antrorsas e retrorsas da margem anterior do espinho da nadadeira peitoral, linha lateral relativamente longa, ultrapassando a vertical que passa pelo final da base da nadadeira dorsal, mas não atingindo a nadadeira adiposa, padrão de colorido da região dorsal castanho escuro com uma estreita área clara restrita entre a narina anterior e o olho, faixa clara larga na região supraoccipital.

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Section: Discussionmentioning

confidence: 99%

A new species of bumblebee catfish of the genus Microglanis (Siluriformes: Pseudopimelodidae) from the upper rio Paraguay basin, Brazil

Shibatta

2016

Neotrop. ichthyol.

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“…With the description of this new species, the number of known species of Microglanis (Jarduli & Shibatta, 2013) is increasing to 22, highlighting the AraguaiaTocantins basin as one of the richest in Microglanis species.…”

Section: Introductionmentioning

confidence: 96%

A new species of Microglanis(Siluriformes: Pseudopimelodidae) from the upper rio Tocantins basin, Goiás State, Central Brazil

Shibatta¹

2014

Neotrop. ichthyol.

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A new species of Microglanis is described from the upper rio Tocantins basin, Barro Alto, Goiás State, Brazil. This species is distinguished from the others by presenting a unique color pattern, consisting of round spots in the flank between the larger dark brown blotches. Moreover, it can be distinguished by the combination of the following features: caudal fin emarginate, the upper lobe slightly larger than the lower, lateral line relatively long, reaching vertical through posterior margin of the pelvic fin, and light stripe on supra-occipital region absent or very narrow and with irregular shape.Uma espécie nova de Microglanis é descrita da bacia do alto rio Tocantins, Barro Alto, estado de Goiás, Brasil. Essa espécie distingue-se das demais por apresentar um padrão de colorido único, constituído por manchas arredondadas no flanco entre as manchas castanho escuras maiores. Além disso, pode ser diferenciada pela combinação dos seguintes caracteres: nadadeira caudal emarginada, com o lobo superior ligeiramente maior que o inferior, linha lateral relativamente longa, atingindo a vertical que passa pela margem posterior da nadadeira pélvica, e faixa clara na região supraoccipital ausente ou muito estreita e com formato irregular.

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“…Microglanis Eigenmann, 1912 (Pseudopimelodidae) are a group of fishes with small body size (standard length of less than 11 cm [ 12 ]) comprising 28 species distributed across South America [ 13 ], [ 14 ], [ 15 ], [ 16 ]. The geographic distribution of these fishes is affected by physio-ecological constraints since Microglanis do not tolerate salt water, which prevent species from dispersing through the sea, sensu Myers [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Reappraisal of the systematics of Microglanis cottoides (Siluriformes, Pseudopimelodidae), a catfish from southern Brazil

et al. 2018

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The southern region of Brazil is characterized by high species diversity and endemism of freshwater fishes distributed across geographically isolated river basins. Microglanis cottoides has a widespread range across these river basins and occurs in sympatry with other endemic species of the genus (e.g. M. cibelae, M. eurystoma, and M. malabarbai). Herein we tested the monophyly of M. cottoides and presented for the first time information about the molecular phylogeny of species in the genus. The results suggest that M. cottoides currently forms a non-monophyletic group which includes populations endemic to the Uruguay River basin that are more closely related to M. malabarbai, and excludes M. cibelae, found to be nested within M. cottoides. Based on an integrative approach using morphological and molecular data, we propose M. cibelae as a junior synonym of M. cottoides, and the populations of the Uruguay River basin previously assigned to M. cottoides in fact belong to M. malabarbai. Our molecular phylogeny shows that M. cottoides is sister to M. parahybae, which is also a coastal species, and M. malabarbai is sister of M. garavelloi, both endemic to inland river basins. The time-calibrated phylogeny indicates that the separation between inland and the coastal clades occurred in the Tertiary period, and that the species within the coastal basins diverged in the Pliocene, which overlaps with the diversification times estimated for the two inland species as well. This pattern of diversification corroborates some previous studies with other fishes from the same region.

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Description of a new species of Microglanis (Siluriformes: Pseudopimelodidae) from the Amazon basin, Amazonas State, Brazil

Cited by 5 publications

References 4 publications

A new species of bumblebee catfish of the genus Microglanis (Siluriformes: Pseudopimelodidae) from the upper rio Paraguay basin, Brazil

A new species of bumblebee catfish of the genus Microglanis (Siluriformes: Pseudopimelodidae) from the upper rio Paraguay basin, Brazil

A new species of Microglanis(Siluriformes: Pseudopimelodidae) from the upper rio Tocantins basin, Goiás State, Central Brazil

Reappraisal of the systematics of Microglanis cottoides (Siluriformes, Pseudopimelodidae), a catfish from southern Brazil

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