Overview

Comprehensive Description

[[ Ituglanis Costa & Bockmann ZBK ]]

Ituglanis ZBK was created by Costa & Bockmann in recognition of a small monophyletic group of species formerly included in Trichomycterus , a genus of the non-monophyletic sub-family Trichomycterinae. Ituglanis ZBK is a widespread catfish genus occurring in the main river basins of tropical South America (Costa & Bockmann, 1993).

It is hypothesized that Ituglanis ZBK forms a monophyletic lineage within a large trichomycterid clade containing the subfamilies Tridentinae, Stegophilinae, Vandellinae, Sarcoglanidinae and Glanapteryginae, the clade TSVSG as defined by Costa & Bockmann (1993, 1994), all sharing a reduced number of pleural ribs (i. e., one to six pairs) (Costa & Bockmann, 1993; de Pinna, 1998). Ituglanis ZBK has been placed in an intermediate phylogenetic position between the TSVSG clade and all other trichomycterids, thus considered to be important to understand the major morphological, functional and trophic modifications occurring in the specialized members of the TSVSG clade (e. g., the hematophagous candirus) (de Pinna, 1998; de Pinna & Keith, 2003).

With increased collecting efforts and a detailed taxonomic study, much reliable information about the genus has been published since 2000. Seven new species of Ituglanis ZBK have been recently described, including four adapted to cave environments (Fernandez & Bichuette, 2002; Bichuette & Trajano, 2004), Ituglanis nebulosus ZBK from French Guyana distinguished principally by the color pattern (de Pinna and Keith, 2003), Ituglanis macunaina ZBK described by a combination of characteristics but without any exclusive taxonomic character (Datovo & Landim, 2005) and Ituglanis cahyensis (Sarmento-Soares et al., 2006) , also from Bahia, but distinguished by many features. With the description of Ituglanis paraguassuensis the genus now comprises 18 species, a number that will probably increase in a few years.

  • Rafael M. Campos-Paiva, Wilson J. E. M. Costa (2007): Ituglanis paraguassuensis sp. n. (Teleostei: Siluriformes: Trichomycteridae): a new catfish from the rio Paraguacu, northeastern Brazil. Zootaxa 1471, 53-59: 53-54, URL:http://www.zoobank.org/urn:lsid:zoobank.org:pub:B5779D1E-F9FF-4D49-8E9A-D2785BE42BAD
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Ituglanis ZBK n. sp.

MNRJ 11489 (13 ex. 5 C&S);

  • Wolmar Benjamin Wosiacki (2004): New species of the catfish genus Trichomycterus (Siluriformes, Trichomycteridae) from the headwaters of the rio São Francisco basin, Brazil. Zootaxa 592, 1-12: 9-9, URL:http://www.zoobank.org/urn:lsid:zoobank.org:pub:003431F8-DD57-4C9A-ACF9-B7F180E65729
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Ecology

Habitat

Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 0.5 - 0.5
 
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Wikipedia

Ituglanis

Ituglanis is a genus of pencil catfishes native to South America. Their greatest diversity seems to occur in the Amazon River basin.[1] Most species inhabit leaf litter, while four species have been described from caves.[1]

This genus was first erected for nine species previously classified in Trichomycterus.[2] Ituglanis is believed to be a monophyletic group.[2] There may be two monophyletic groups within this genus.[1] Ituglanis is currently considered a member of the subfamily Trichomycterinae[3] though its position as a member of any of the current subfamilies has been questioned.[4] Instead, it has been suggested to be the sister group of a large clade composed of the Tridentinae, Stegophilinae, Vandelliinae, Sarcoglanidinae, and Glanapteryginae.[1]

Species[edit]

There are currently 23 recognized species in this genus: [3][5][6]

References[edit]

  1. ^ a b c d e Datovo, Aléssio; Landim, Maria Isabel (2005). "Ituglanis macunaima, a new catfish from the rio Araguaia basin, Brazil (Siluriformes: Trichomycteridae)" (PDF). Neotropical Ichthyology 3 (4): 455–464. doi:10.1590/S1679-62252005000400002. 
  2. ^ a b c Sarmento-Soares, Luisa M.; Martins-Pinheiro, Ronaldo F.; Aranda, Arion T.; Chamon, Carine C. (2006). "Ituglanis cahyensis, a new catfish from Bahia, Brazil (Siluriformes: Trichomycteridae)" (PDF). Neotropical Ichthyology 4 (3): 309–318. doi:10.1590/S1679-62252006000300002. 
  3. ^ a b Froese, Rainer, and Daniel Pauly, eds. (2014). Species of Ituglanis in FishBase. February 2014 version.
  4. ^ a b Campos-Paiva, Rafael M.; Costa, Wilson J. E. M. (2007). "Ituglanis paraguassuensis sp. n. (Teleostei: Siluriformes: Trichomycteridae): a new catfish from the rio Paraguaçu, northeastern Brazil" (PDF). Zootaxa 1471: 53–59. 
  5. ^ a b Datovo, A. & de Pinna, M.C.C. (2014): A new species of Ituglanis representing the southernmost record of the genus, with comments on phylogenetic relationships (Teleostei: Siluriformes: Trichomycteridae). Journal of Fish Biology, 84 (2): 314–327.
  6. ^ a b Datovo, A. (2014): A new species of Ituglanis from the Rio Xingu basin, Brazil, and the evolution of pelvic fin loss in trichomycterid catfishes (Teleostei: Siluriformes: Trichomycteridae). Zootaxa, 3790 (3): 466–476.
  7. ^ Lima, S.M.Q., Neves, C.P. & Campos-Paiva, R.M. (2013): Ituglanis agreste, a new catfish from the rio de Contas basin, northeastern Brazil (Siluriformes: Trichomycteridae). Neotropical Ichthyology, 11 (3): 513-524.
  8. ^ Wosiacki, W.B., Dutra, G.M. & Mendonça, M.B. (2012): Description of a new species of Ituglanis (Siluriformes: Trichomycteridae) from Serra dos Carajás, rio Tocantins basin. Neotropical Ichthyology, 10 (3): 547-554.
  9. ^ Bichuette & Trajano; Pinna, Mario César Cardoso de; Trajano, Eleonora (2008). "Ituglanis mambai, a new subterranean catfish from a karst area of Central Brazil, rio Tocantins basin (Siluriformes: Trichomycteridae)". Neotropical Ichthyology 6 (1): 9–15. doi:10.1590/S1679-62252008000300002. 


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