Deuterodon

Deuterodon is a genus of characins from river basins in southern and southeastern Brazil (Rio Grande do Sul to Espírito Santo), with a single species of uncertain taxonomic status, D. potaroensis, from Guyana.[1][2] These are small fish that reach up to 12.6 cm (5.0 in) in total length.[1] They are omnivores with a specialized mouth structure that allows them to scrape algae and debris off bedrock.[3]

Deuterodon
Deuterodon iguape
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Characiformes
Family: Characidae
Subfamily: Stethaprioninae
Genus: Deuterodon
C. H. Eigenmann, 1907

Species formerly considered members of the genera Probolodus and Myxiops are considered to be members of Deuterodon by modern researchers, following a thorough phyletic review of several characid genera in 2020.[4]

Species

The following 24 species are recognized in the genus Deuterodon:[1][5]

  • Deuterodon aphos (Zanata & Akama, 2004)
  • Deuterodon burgerai (Zanata & Camelier, 2009)
  • Deuterodon giton (Eigenmann, 1908)
  • Deuterodon hamatilis (Camelier & Zanata, 2014)
  • Deuterodon hastatus (Myers, 1928)
  • Deuterodon heterostomus (Eigenmann, 1911)
  • Deuterodon iguape C. H. Eigenmann, 1907
  • Deuterodon intermedius (Eigenmann, 1908)
  • Deuterodon janeiroensis (Eigenmann, 1908)
  • Deuterodon langei Travassos, 1957
  • Deuterodon longirostris (Steindachner, 1907)
  • Deuterodon luetkenii (Boulenger, 1887)
  • Deuterodon mutator (Eigenmann, 1909)
  • Deuterodon oyakawai (Santos & Castro, 2014)
  • Deuterodon parahybae C. H. Eigenmann, 1908
  • Deuterodon pelecus (Bertaco & Lucena, 2006)
  • Deuterodon potaroensis C. H. Eigenmann, 1909
  • Deuterodon ribeirae (Eigenmann, 1911)
  • Deuterodon rosae (Steindachner, 1908)
  • Deuterodon sazimai (Santos & Castro, 2014)
  • Deuterodon singularis Z. M. S. de Lucena & C. A. S. de Lucena, 1992
  • Deuterodon stigmaturus (A. L. Gomes, 1947)
  • Deuterodon supparis Z. M. S. de Lucena & C. A. S. de Lucena, 1992
  • Deuterodon taeniatus (Jenyns, 1842)

References
  1. Froese, Rainer and Pauly, Daniel, eds. (2023). Species of Deuterodon in FishBase. January 2023 version.
  2. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Deuterodon". Catalog of Fishes. California Academy of Sciences. Retrieved 3 January 2018.
  3. Silva Gonçalves, C.; C. Cestari (2018). Grazing of the lambari fish Deuterodon iguape is associated with mouth morphology. Zoologischer Anzeiger 274: 127-130.
  4. Terán, Guillermo E; Benitez, Mauricio F; Mirande, J Marcos (2020-04-11). "Opening the Trojan horse: phylogeny of Astyanax, two new genera and resurrection of Psalidodon (Teleostei: Characidae)". Zoological Journal of the Linnean Society. doi:10.1093/zoolinnean/zlaa019. ISSN 0024-4082.
  5. Silva, P.C.; M.C. Malabarba; L.R. Malabarba (2017). Using ancient DNA to unravel taxonomic puzzles: the identity of Deuterodon pedri (Ostariophysi: Characidae). Neotrop. ichthyol. 15(1).


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