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Trichomycterus immaculatus (Eigenmann & Eigenmann, 1889)

 

Image contributors to this species:

Mark Henry Sabaj (3)

ScotCat Sources:

Etymology = Genus

Other Sources:

Search  Fishbase  Catalog of Fishes  Global Biodiversity Information Facility  FishNet2  iNaturalist

Relevant Information:

Description: Trichomycteridae is a monophyletic group composed of eight subfamilies, 41 genera and approximately 207 species (Ferraris 2007). Seven subfamilies are demonstrably monophyletic groups, but Trichomycterinae is the largest and clearly a polyphyletic group of Trichomycteridae (Wosiacki 2002). The Trichomycterus genus, touted as not monophyletic (de Pinna 1989), is the richest and most widely distributed of Trichomycteridae family, with 113 valid species spread throughout South and Central America, on both sides of the Andes (de Pinna and Wosiacki 2003, Ferraris 2007). A considerable diversity of Trichomycterus species occurs in the hydrographic basins of South and Southeast of Brazil. In these regions 34 species (Bockman et al. 2004) have been described. Remarks: T. immaculatus sports ventral armatures (odontodes) along opercles that help it cling to rocky surfaces (Sabaj, Mark Henry 2018).

Common Name:

None

Synonyms:

Pygidium immaculatum

Family:

Trichomycteridae

Distribution:

South America: Paraíbuna River, Paraíba do Sul River basin, Brazil. Type locality: Juiz de Fora, Rio Parahybuna, Sao Matheos, Goyaz [Brazil].

Size:

9.5cm. (3¾ins)

Temp:

22-26°c (71-79°f.)

p.H.

6.0-7.0.

Reference:

Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
Froese, R. and D. Pauly. Editors. 2019. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 01/2019 ).
Burgess, W.E., 1989. An atlas of freshwater and marine catfishes. A preliminary survey of the Siluriformes. T.F.H. Publications, Inc., Neptune City, New Jersey (USA). 784 p.
Sabaj, Mark Henry; FB page 2018.



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Family: Trichomycteridae  Back to Ident-A-Cat  Click on Thumbnails

Click for full image Trichomycterus immaculatus
Rio Piracicaba, São Paulo state southeastern Brazil
Click for full imageTrichomycterus immaculatus
Head view-Rio Piracicaba, São Paulo state southeastern Brazil
Click for full imageTrichomycterus immaculatus
Ventral view-Rio Piracicaba, São Paulo state southeastern Brazil

 

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