Baryancistrus

Baryancistrus
Baryancistrus niveatus
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Division: Teleostei
Order: Siluriformes
Family: Loricariidae
Subfamily: Hypostominae
Genus: Baryancistrus
Rapp Py-Daniel, 1989[1]
Type species
Hypostomus niveatus

Baryancistrus is a genus of freshwater ray-finned fishes belonging to the family Loricariidae, the suckermouth armoured catfishes, and the subfamily Hypostominae, the suckermouth catfishes.[1] They inhabit flowing sections of rivers, especially clearwater, in the basins of the Amazon (notably Trombetas, Tapajós, Xingu and Tocantins) and Orinoco (notably Ventuari) in Brazil and Venezuela. The largest species reach up to 34 cm (13 in) in total length.[2]

Most Baryancistrus are differentiated from other related genera by a membrane connecting their dorsal fin and adipose fin, not present in most other genera.[3]

The species of this genus are mainly herbivores and detritivores, but may take other foods in an aquarium setting. Most have probably not been bred in captivity. It is difficult to sex these fish, including adult specimens. These fish are mainly nocturnal, but will also emerge from their hiding places during the day, after some time getting accustomed to the aquarium. Adequate hiding places are recommended for these fish due to their primary nocturnal nature.

Species

Baryancistrus contains the following valid species:[4]

List of Baryancistrus sp. L-numbers

Though there are many types of fish described as Baryancistrus, there are many that yet to be given a true scientific designation, and are only referred to under the L-number system, including the Gold Nuggets. Here is a list of Baryancistrus by L-number designation. The common name and scientific name are included when available, though some of these fish are only commonly referred to by their L-number. For those fish without a scientific name, they are assumed to be Baryancistrus sp.

L-number(s) or LDACommon name(s)Scientific name
L003Kieser pleco
L018, L085Gold Nugget plecoBaryancistrus xanthellus
L019
L026Baryancistrus niveatus
L047Magnum pleco, Mango plecoBaryancistrus chrysolomus
L057
L081Gold Nugget plecoBaryancistrus xanthellus
L084
L115, L248Mega snowball pleco
L142, LDA33Big White Spot pleco
L177Iriri Gold Nugget plecoBaryancistrus xanthellus
L200*Baryancistrus demantoides
L219
L274
L239Blue PanaqueBaryancistrus beggini
L319
L323
L324
L364
L384
LDA60gold nuggetBaryancistrus xanthellus

* Note: L200 is also used to refer to Hemiancistrus subviridis, another Loricariid that is very similar in appearance to B. demantoides.

See also

References

  1. 1 2 3 Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Genera in the family Hypostominae". Catalog of Fishes. California Academy of Sciences. Retrieved 16 June 2026.
  2. ↑ Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Baryancistrus". FishBase. October 2017 version.
  3. ↑ Werneke, David C.; Sabaj, Mark H.; Lujan, Nathan K.; Armbruster, Jonathan W. (2005). "Baryancistrus demantoides and Hemiancistrus subviridis, two new uniquely colored species of catfishes from Venezuela (Siluriformes: Loricariidae)". Neotropical Ichthyology. 3 (4). Sociedade Brasileira de Ictiologia: 533–542. doi:10.1590/S1679-62252005000400011.
  4. ↑ Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Species in the genus Baryancistrus". Catalog of Fishes. California Academy of Sciences. Retrieved 16 June 2026.

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