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Plecostomus 700.jpg
Pterygoplichthys sp.
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Loricariidae
Subfamily: Hypostominae
Kner, 1853


The Hypostominae are a subfamily of catfishes (order Siluriformes) of the family Loricariidae. Most members of the subfamily are restricted to tropical and subtropical South America, but there are also several species (in genera Ancistrus, Chaetostoma, Lasiancistrus, Leptoancistrus and Hemiancistrus) in southern Central America. Hypostomus plecostomus, which is popular in the aquarium trade, has been introduced to several regions far from its native range.

Studies conducted with representatives of some genera of Hypostominae showed, within this group, the diploid number ranges from 2n = 52 to 2n = 80. However, the supposed wide karyotypic diversity the family Loricariidae or the subfamily Hypostominae would present is almost exclusively restricted to the genus Hypostomus, and the species from the other genera had a conserved diploid number.[1]



  1. ^ Alves, Anderson Luís; Oliveira, Claudio; Foresti (2005). "Comparative cytogenetic analysis of eleven species of subfamilies Neoplecostominae and Hypostominae (Siluriformes: Loricariidae)". Genetica. 124 (2–3): 127–136. PMID 16134327. doi:10.1007/s10709-004-7561-4. 
  2. ^ Zawadzki, C.H.; Bifi, A.G.; Mariotto, S. (2016). "Araichthys loro, a new genus and species of suckermouth armored catfish from the upper rio Tapajós basin, Brazil (Siluriformes: Loricariidae)" (PDF). Ichthyological Exploration of Freshwaters. 27 (4): 361–372.