Ancistrus eustictus

Ancistrus eustictus
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Division: Teleostei
Order: Siluriformes
Family: Loricariidae
Genus: Ancistrus
Species:
A. eustictus
Binomial name
Ancistrus eustictus
(Fowler, 1945)[2]
Synonyms[2]
  • Pristiancistrus eustictus Fowler, 1945

Ancistrus eustictus 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 endmeic to Colombia.

Taxonomy

Ancistrus eustictus was first formally described as Pristiancistrus eustictus in 1945 by the American zoologist Henry Weed Fowler with its type locality given as the upper Baudó River on the Pacific slope of Colombia, from an elevation of "3,000 ft (910 m)".[2] Some authorities regard this taxon as a synonym of A. centrolepis.[3] Eschmeyer's Catalog of Fishes classified the genus Ancistrus in the subfamily Hypostominae, the suckermouth catfishes, within the suckermouth armored catfish family Loricariidae.[4] It has also been classified in the tribe Ancistrini by some authorities.[5]

Etymology

Ancistrus eustictus 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, eustictus, means "well spotted", thought to be an allusion to the five or six large black spots along the dorsal fin.[6]

Description

Ancistrus eustictus reaches a standard length of 18 cm (7.1 in).[7] Ancistrus species develop soft, bushy tentacles on the snout when sexually mature, these are better developed in the males than they are in females.[8]

Distribution and habit

Ancistrus eustictus, if it is a valid species, is endemic to Colombia where its range is uncertain but thought to be centred on the Baudó River on the Pacific Slope of the Andes.[9]

Consrevation status

Ancistrus eustictus is of uncertain valididty as a species and little is known about this taxon's range, biology or ecology so the International Union for Conservation of Nature have classified it as Data Deficient.[9]

References

  1. ↑ Perez, A. (2023). "Ancistrus eustictus". IUCN Red List of Threatened Species. 2023 e.T49829683A66338841. doi:10.2305/IUCN.UK.2023-1.RLTS.T49829683A66338841.en. Retrieved 28 May 2026.
  2. 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 28 May 2026.
  3. ↑ Taphorn, Donald; Armbruster, Jonathan; Villa-Navarro, Francisco & Ray, C. (2013). "Trans-Andean Ancistrus (Siluriformes: Loricariidae)". Zootaxa. 3641 343. doi:10.11646/zootaxa.3641.4.2.
  4. ↑ Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Genera in the family Hypostominae". Catalog of Fishes. California Academy of Sciences. Retrieved 28 May 2026.
  5. ↑ 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.
  6. ↑ 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 28 May 2026.
  7. ↑ Froese, Rainer; Pauly, Daniel (eds.). "Ancistrus eustictus". FishBase. February 2026 version.
  8. ↑ "Cat-eLog LORICARIIDAE Hypostominae Ancistrus eustictus". PlanetCatfish.com. Retrieved 28 May 2026.
  9. 1 2 Cite error: The named reference iucn was invoked but never defined (see the help page).