Creagrutus occidaneus

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Creagrutus occidaneus
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Characiformes
Family: Stevardiidae
Genus: Creagrutus
Species:
C. occidaneus
Binomial name
Creagrutus occidaneus
Vari & Harold, 2001

Creagrutus occidaneus is a species of freshwater ray-finned fish, a characin, belonging to the family Stevardiidae. [1]

Contents

Location

It is native to South America, occurring in the foothills and lowlands of eastern Peru within the Manu River basin of the Department of Madre de Dios, and in the upper Purus River basin in Acre and Amazonas, Brazil, as well as the Department of Ucayali, Peru. Both the Manu and Purus drainages form part of the western Amazon basin, one of the most biodiverse freshwater systems on Earth. The Manu basin lies within the Andean–Amazon transition zone, noted for its exceptional ecological richness, while the Purus basin extends across Brazil and Peru, contributing to the vast network of tributaries that sustain the Amazon River. The species’ distribution across these regions underscores its role within the interconnected habitats of the Amazon watershed.

Size

This species reaches a length of 6.6 cm (2.6 in). [2]

Etymology

The species name derives from the Latin word for ‘western,’ referring to its distribution in the western lowlands of the Amazon basin. [3]

References

  1. Vari, R.P. and A.S. Harold, 2001. Phylogenetic study of the Neotropical fish genera Creagrutus Günther and Piabina Reinhardt (Teleostei: Ostariophysi: Characiformes), with a revision of the Cis-Andean species. Smith. Cont. Zool. 613:1-239.
  2. Froese, Rainer; Pauly, Daniel (eds.). "Creagrutus occidaneus". FishBase . February 2025 version.
  3. Christopher Scharpf & Kenneth J. Lazara (22 September 2018). "Family STEVARDIIDAE Gill 1858 (Stevardiids)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 15 December 2025.