Ancistrus dubius
| Ancistrus dubius | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Order: | Siluriformes |
| Family: | Loricariidae |
| Genus: | Ancistrus |
| Species: | A. dubius |
| Binomial name | |
| Ancistrus dubius | |
| Synonyms[2] | |
| |
Ancistrus dubius is a species of freshwater ray-finned fish belonging to the family Loricariidae, the suckermouth armoured catfishes, and the subfamily Hypostominae, the suckermouth catfishes. This catfish is endemic to Brazil.
Taxonomy
[edit]Ancistrus dubius was first formally described as Ancistrus cirrhosus dubius in 1889 by the American ichthyologists Carl H. Eigenmann and Rosa Smith Eigenmann with its type locality given as Gurupá in the Brazilian state of Pará.[2] Eschmeyer's Catalog of Fishes classified the genus Ancistrus in the subfamily Hypostominae, the suckermouth catfishes, within the suckermouth armored catfish family Loricariidae.[3] It has also been classified in the tribe Ancistrini by some authorities.[4]
Etymology
[edit]Ancistrus dubius is classified in the genus Ancistrus, a name coined by Rudolf Kner when he proposed the genus but Kner did not explain the etymology of the name. It is thought to be from the Greek ágkistron, meaning a "fish hook" or the "hook of a spindle", a reference to the hooked odontodes on the interopercular bone. The specific name, dubius, means "uncertain" or "doubtful" in Latin, because the Eigenmanns were dubious about its validity of this as a species.[5]
Description
[edit]Ancistrus dubius reaches a standard length of 12.6 cm (5.0 in).[6] Ancistrus species develop soft, bushy tentacles on the snout when sexually mature, these are better developed in the males than they are in females.[7]
Distribution and habit
[edit]Ancistrus dubius is found in the Amazon Basin where it has been recorded in the Tapajós, Xingu and Negro rivers, in Brazil, in the Madeira River, in Bolivia and Brazil, and in the area where the borders of Brazil, Peru and Colombia meet. This catfish lives in rivers but there is little information on it biology and ecology.[1]
References
[edit]- 1 2 Salvador, G.N. (2023). "Ancistrus dubius". IUCN Red List of Threatened Species. 2023 e.T164512540A164512554. doi:10.2305/IUCN.UK.2023-1.RLTS.T164512540A164512554.en. Retrieved 27 May 2026.
- 1 2 3 Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Species in the genus Ancistrus". Catalog of Fishes. California Academy of Sciences. Retrieved 27 May 2026.
- ↑ Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Genera in the family Hypostominae". Catalog of Fishes. California Academy of Sciences. Retrieved 27 May 2026.
- ↑ Armbruster, J. W. and N. K. Lujan (2025). "New tribe-level classification of Hypostominae (Loricariidae) based on optimization of morphological states on DNA-based relationships, with descriptions of three new tribes and two new genera". Neotropical Ichthyology. 22 (4)): 1–32. doi:10.1590/1982-0224-2024-0108.
- ↑ Christopher Scharpf (18 January 2026). "Family LORICARIIDAE: Subfamily HYPOSTOMINAE Kner 1853 (Suckermouth Catfishes or Plecos)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. Retrieved 27 May 2026.
- ↑ Froese, Rainer; Pauly, Daniel (eds.). "Ancistrus dubius". FishBase. February 2026 version.
- ↑ "Cat-eLog LORICARIIDAE Hypostominae Ancistrus dubius". PlanetCatfish.com. Retrieved 27 May 2026.