Ancistrus triradiatus
| Ancistrus triradiatus | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Order: | Siluriformes |
| Family: | Loricariidae |
| Genus: | Ancistrus |
| Species: | A. triradiatus |
| Binomial name | |
| Ancistrus triradiatus C. H. Eigenmann, 1918[2] | |
Ancistrus triradiatus 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 found in northern South America.
Taxonomy
Ancistrus triradiatus was first formally described in 1918 by the German-born American ichthyologist Carl H. Eigenmann, with its type locality given as the ravine of Cramalote, Barrigona and Villavicencio, upper Meta River drainage, Colombia.[2][3] Eschmeyer's Catalog of Fishes classifies 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 triradiatus 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, triradiatis, means "three-rayed", an allusion Eigenmann did not explain but may refer to the 3 soft rays in the anal fin.[6]
Description
Ancistrus triradiatus reaches a standard length of 9.2 cm (3.6 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 habitat
Ancistrus triradiatus is found in northern South America in the Orinoco drainage system, as well as in river drainages flowing into the caribbean Sea tp the north of the Orinoco in Colombia and Venezuela. This species is found in pools and riffles, it is one of the deeper bodied Ancistrus catfishes which suggests that it can tolerate slower flows than some of its congeners.[1]
Utilisation
Ancistrus triradiatus sometimes appears in the aquarium trade, where it is known as the gold-spot[9] or three-ray bristlenose pleco.[1]
References
- 1 2 3 Armbruster, J.W. (2023). "Ancistrus triradiatus". IUCN Red List of Threatened Species. 2023 e.T49829936A176013285. doi:10.2305/IUCN.UK.2023-1.RLTS.T49829936A176013285.en. Retrieved 23 February 2024.
- 1 2 Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Species in the genus Ancistrus". Catalog of Fishes. California Academy of Sciences. Retrieved 12 June 2026.
- ↑ Carl H. Eigenmann (1918). "Eighteen new species of fishes from northwestern South America". Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge. 56 (7). American Philosophical Society: 673–689.
- ↑ Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Genera in the family Hypostominae". Catalog of Fishes. California Academy of Sciences. Retrieved 12 June 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 12 June 2026.
- ↑ Froese, Rainer; Pauly, Daniel (eds.). "Ancistrus triradiatus". FishBase. February 2026 version.
- ↑ "Cat-eLog LORICARIIDAE Hypostominae Ancistrus triradiatus". PlanetCatfish.com. Retrieved 12 June 2026.
- ↑ "Gold Spot Bristlenose Pleco (Ancistrus triradiatus)". Aqua Imports. Retrieved 2022-03-10.