Trichomycterus brachykechenos

Trichomycterus brachykechenos is a species of pencil catfish endemic to Brazil, where it occurs in the dos Sinos river, part of the Laguna dos Patos system, in the state of Rio Grande do Sul. This species reaches a maximum length of 7.1 centimetres (2.8 in) SL.[1]

Trichomycterus brachykechenos
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Trichomycteridae
Genus: Trichomycterus
Species:
T. brachykechenos
Binomial name
Trichomycterus brachykechenos
Ferrer & Malabarba, 2013

Etymology

The specific name brachykechenos is derived from the Greek brachys (βραχύς), meaning short, and kechenos (κεχηνώς), meaning gaping, and refers to the short posterior cranial fontanelle of the species.[1]

Habitat and ecology

At the locality where most of the type specimens were collected, the dos Sinos river is narrow (5 to 9m) and shallow (depth less than 1m) with fast current and rapids, a distinct slope, clear waters, a substrate consisting mainly of large rocks, and conserved riparian vegetation.[1]

T. brachykechenos feeds on larvae of the Chironomidae (Diptera) and pupa of the Diptera.[1]

References
  1. Ferrer, J. & Malabarba, L. R. (2013). "Taxonomic review of the genus Trichomycterus Valenciennes (Siluriformes: Trichomycteridae) from the laguna dos Patos system, Southern Brazil" (PDF). Neotropical Ichthyology. Sociedade Brasileira de Ictiologia. 11 (2): 217–246. doi:10.1590/S1679-62252013000200001.

Further reading


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