Biology:Ancistrus marcapatae

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Short description: Species of catfish

Ancistrus marcapatae
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Loricariidae
Genus: Ancistrus
Species:
A. marcapatae
Binomial name
Ancistrus marcapatae
(Regan, 1904)[2]
Synonyms[2]
  • Ancistrus heterorhynchus Chaetostomus marcapatae
  • Regan, 1904 Regan, 1904
  • Regan, 1912 Xenocara boliviana
  • Xenocara heterorhynchus Steindachner, 1915
  • Chaetostoma marcapatae Regan, 1912
  • (Steindachner. 1915) Ancistrus bolivianus

Ancistrus marcapatae 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 Peru.

Taxonomy

Ancistrus marcapatae was first formally described in 1912 by the British ichthyologist Charles Tate Regan, with its type locality given as the Marcapata Valley, in the Inambari River basin of eastern Peru.[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

Ancistrus marcapatae is classified in the genus Ancistrus, a name coined by Rudolf Kner, but when he proposed the genus he 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, marcapatae, means of the Marcapata Valley, the type locality of this species.[5]

Description

Ancistrus marcapatae reaches a total length of 12.4 cm (4.9 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

Ancistrus marcapatae is endemic to Peru, where it is known only from the Inambari River basin in Madre de Dios Department which sits between 304 and 1,108 m (997 and 3,635 ft) above sea level. [1]

Conservation status

Ancistrus marcapatae has a highly restricted range and it has only been recorded from one location, one that is subject to illegal gold mining and deforestation. These activities have both lead to a continuous decline in habitat quality. The International Union for Conservation of Nature have classified this catfish as Endangered.[1]

References

  1. 1.0 1.1 1.2 Velasquez, M.; Hidalgo del Aguila, M. (2016). "Ancistrus marcapatae". IUCN Red List of Threatened Species 2016. doi:10.2305/IUCN.UK.2016-1.RLTS.T49829637A53817228.en. https://www.iucnredlist.org/species/49829637/53817228. Retrieved 31 May 2026. 
  2. 2.0 2.1 2.2 Eschmeyer, William N.; Fricke, Ron; van der Laan, Richard, eds. "Species in the genus Ancistrus". California Academy of Sciences. http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatget.asp?tbl=species&genus=Ancistrus. 
  3. Eschmeyer, William N.; Fricke, Ron; van der Laan, Richard, eds. "Genera in the family Hypostominae". California Academy of Sciences. http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatget.asp?tbl=genus&family=Hypostominae. 
  4. Armbruster, J. W.; 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. 
  5. Christopher Scharpf (18 January 2026). "Family LORICARIIDAE: Subfamily HYPOSTOMINAE Kner 1853 (Suckermouth Catfishes or Plecos)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. https://etyfish.org/hypostominae/. 
  6. Froese, Rainer and Pauly, Daniel, eds. (2026). "Ancistrus marcapatae" in FishBase. February 2026 version.
  7. "Cat-eLog LORICARIIDAE Hypostominae Ancistrus marcapatae". https://www.planetcatfish.com/common/species.php?species_id=2018. 

Wikidata ☰ Q28657171 entry