Article · Wikipedia archive · Last revised Jul 5, 2026

Pseudacanthicus major

Pseudacanthicus major is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Tocantins River basin in Brazil. The species is notably large for a loricariid, reaching 60 cm SL.

Last revised
Jul 5, 2026
Read time
≈ 1 min
Length
191 w
Citations
4
Source
Pseudacanthicus major
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Loricariidae
Genus: Pseudacanthicus
Species:
P. major
Binomial name
Pseudacanthicus major
Chamon & Costa e Silva, 2018

Pseudacanthicus major1 is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Tocantins River basin in Brazil. The species is notably large for a loricariid, reaching 60 cm (23.6 inches) SL.2

P. major was described in 2018 by Carine C. Chamon (of the Federal University of Tocantins) and Thiago Costa e Silva on the basis of coloration and morphology. Its specific epithet derives from Latin and refers to its large size.2 It appears in the aquarium trade, where it is usually referred to either as the giant cactus pleco or by its L-number, which is L-186.3 FishBase does not list this species.

References

References

  1. "Pseudacanthicus major Chamon & Costa e Silva, 2018". www.gbif.org. Retrieved 2022-06-21.
  2. Chamon, C. C., & Silva, T. (2018). Pseudacanthicus major: description of one of the largest known Loricariidae (Hypostominae: Ancistrini), a species from rio Tocantins basin, Brazil. Zootaxa, 4387(3), 499–510. doi:10.11646/zootaxa.4387.3.5
  3. "Pseudacanthicus major • Loricariidae • Cat-eLog". www.planetcatfish.com. Retrieved 2022-06-21.