Trichomycterus trefauti is a species of pencil catfish presently only known from the upper basin of the São Francisco River in Minas Gerais state, Brazil.
| Trichomycterus trefauti | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Trichomycteridae |
| Genus: | Trichomycterus |
| Species: | T. trefauti
|
| Binomial name | |
| Trichomycterus trefauti Wosiacki, 2004
| |
This is a small, cylindrical catfish (35–55 mm standard length) which can most readily be distinguished from its congeners by its uniformly grey colouring, marked only by a distinctive elliptical dark spot at the base of the caudal fin. Other notable features include widely spaced eyes, very long barbels, the extension of the first ray of the pectoral fin into a long filament and pelvic fins which completely cover the anus and urogenital openings.
References
edit- Wosiacki, W. B. (2004). "New species of the catfish genus Trichomycterus (Siluriformes, Trichomycteridae) from the headwaters of the rio São Francisco basin, Brazil" (PDF). Zootaxa. 592: 1–12. doi:10.11646/zootaxa.592.1.1.
- Froese, Rainer; Pauly, Daniel (eds.). "Trichomycterus trefauti". FishBase. February 2012 version.