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Trichomycterus brasiliensis Lütken, 1874

Image contributors to this species:

Mark Henry Sabaj (4)

ScotCat Sources:

Other Sources:

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). Habitat: 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. Etymology: The specific name brasiliensis: –ensis, Latin suffix denoting place: described from Rio das Velhas, Minas Gerais State, Brazil.

Common Name:

None

Synonyms:

Trichomycterus brasiliensis tristis

Family:

Trichomycteridae

Distribution:

South America: Upper São Francisco River in Minas Gerais and in smaller adjoining basins in southeastern Brazil. Type locality: In Rio das Velhas.

Size:

13.5cm. (5¼ins)

Temp:

22-26°c (71-79°f.)

p.H.

6.0-7.0.

IUCN Red List

Trichomycterus brasiliensis is endemic to the upper São Francisco River. Population data is lacking, and the species is not of commercial interest, therefore it is not targeted for fishing or capture. Although it is found in an area highly susceptible to anthropogenic alterations, the extent to which these affect the population is unknown. Thus, Trichomycterus brasiliensis has been categorised as Least Concern (LC). Further studies are needed to understand its distribution and population and ecological aspects, (IUCN 2022).

Reference:

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.
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 ).
Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio). 2022. Trichomycterus brasiliensis. The IUCN Red List of Threatened Species 2022.
The ETYFish Project Fish Name Etymology Database © Christopher Scharpf.

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

Trichomycterus brasiliensis
Juvenile-creek trib das Velhas in town of Rio Acima (upper Säo Francisco)

Trichomycterus brasiliensis
Small trib Paraopeba (upper Säo Francisco)

Trichomycterus brasiliensis
Head view-small trib Paraopeba (upper Säo Francisco)

Trichomycterus brasiliensis
Dorsal view-small trib Paraopeba (upper Säo Francisco)

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