Parotocinclus

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Genus of fishes

title: "Parotocinclus" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["fish-of-south-america", "freshwater-fish-genera", "otothyrinae", "taxa-named-by-carl-h.-eigenmann", "taxa-named-by-rosa-smith-eigenmann", "catfish-genera"] description: "Genus of fishes" topic_path: "general/fish-of-south-america" source: "https://en.wikipedia.org/wiki/Parotocinclus" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Genus of fishes ::

| image = Parotocinclus jumbo 3.jpg | image_caption = Parotocinclus jumbo | taxon = Parotocinclus | authority = C. H. Eigenmann & R. S. Eigenmann, 1889 | type_species = Otocinclus maculicauda | type_species_authority = Steindachner, 1877

Parotocinclus is a genus of fish in the family Loricariidae native to South America. This genus is distributed through almost all hydrographic systems in South America from the Guyana Shield drainages and Amazon Shield tributaries to the coastal drainages of eastern and southeastern Brazil, including the rio São Francisco basin. Most species have the caudal peduncle oval in cross section.

Ecology

It has been found that Characidium fish species may interact with P. maculicauda. The small Characidium will follow grazing P. maculicauda, which release particulate matter dislodged from the catfish's foraging.

Taxonomy

A parsimony analysis of morphological characters suggests that Parotocinclus is not a monophyletic genus, with P. jumbo and P. collinsae falling outside the group.

Based on analysis of both mitochondrial and nuclear markers, the P. collinsae cladistic group based in been transferred to Rhinotocinclus. P. jumbo may eventually be transferred also. P. bidentatus and P. muriaensis form a monophyletic pair of sister taxa that is more closely related to a subset of species of Parotocinclus (which includes P. maculicauda) than to any other genus of the tribe Otothyrini.

Species

There are currently 27 recognized species in this genus:

References

References

  1. Roxo, F.F.. (2016). "Description of a new species of ''Parotocinclus'' (Siluriformes, Hypoptopomatinae) from the rio Tapajós basin". ZooKeys.
  2. Garavello, J.C.. (2003). "''Parotocinclus planicauda'', a new species of the subfamily Hypoptopomatinae from Southeastern Brazil (Ostariophysi: Loricariidae)". Brazilian Journal of Biology.
  3. Leitão, R.P.. (2007). "Following food clouds: feeding association between a minute loricariid and a characidiin species in an Atlantic Forest stream, Southeastern Brazil". Neotropical Ichthyology.
  4. Gauger, M.F.W.. (2005). "Two new species of Hypoptopomatinae from the rio Paraíba do Sul basin, with comments on the monophyly of ''Parotocinclus'' and the Otothyrini (Siluriformes: Loricariidae)". Neotropical Ichthyology.
  5. (2019-11-01). "An Enigmatic New Loricariid (Actinopterygii: Siluriformes) from Relictual Upper Reaches of Chapada Diamantina, Bahia, Brazil". Copeia.
  6. Ramos, T.P.. (2017). "A new species of armored catfish ''Parotocinclus'' (Siluriformes: Loricariidae) from the rio Parnaíba basin, northeastern, Brazil". Neotropical Ichthyology.
  7. Ramos, T.P.. (2021). "''Parotocinclus jacksoni'', a new hypoptopomatine catfish (Siluriformes: Loricariidae) from the Rio Mamanguape basin, northeastern Brazil". Journal of Fish Biology.
  8. da Silva Jr., D. E.. (2020). "A new species of ''Parotocinclus'' with reduced adipose fin (Loricariidae: Hypoptopomatinae), from the rio Jacuípe basin, Bahia State, Brazil". Neotropical Ichthyology.
  9. Lehmann A., P.. (2013). "A New Species of the Hypoptopomatinae Catfish ''Parotocinclus'' (Siluriformes: Loricariidae), from the Headwaters of the Rio Jequitinhonha, Brazil". Copeia.
  10. (2020-07-31). "''Parotocinclus nandae'', a new distinctive colored catfish (Loricariidae: Hypoptopomatinae) from the upper Rio Paraguaçu, Bahia State, northeastern Brazil". PLOS ONE.
  11. Dario E. Silva-Junior. (2022). "A New Species of ''Parotocinclus'' (Loricariidae: Hypoptopomatinae) from the rio Pardo basin, Bahia State, Brazil, with comments on the sexually dimorphic traits of the nares and olfactory lamellae". Journal of Fish Biology.
  12. Lehmann A., P.. (2012). "A new species of ''Parotocinclus'' (Siluriformes: Loricariidae) from the upper Rio São Francisco, Brazil". Zootaxa.
  13. Ramos, T.P.A.. (2013). "''Parotocinclus seridoensis'', a new hypoptopomatine catfish (Siluriformes: Loricariidae) from the upper rio Piranhas-Açu basin, northeastern Brazil". Neotropical Ichthyology.
  14. Ramos, T.P.A.. (2016). "Redescription of the endangered hypoptopomatine catfish ''Parotocinclus spilurus'' (Fowler, 1941) (Siluriformes: Loricariidae) from the upper rio Jaguaribe basin, northeastern Brazil". Neotropical Ichthyology.

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fish-of-south-americafreshwater-fish-generaotothyrinaetaxa-named-by-carl-h.-eigenmanntaxa-named-by-rosa-smith-eigenmanncatfish-genera