{{Short description|Genus of catfishes}} {{Automatic taxobox | image = Harttia loricariformis.png | image_caption = ''Harttia loricariformis'' | taxon = Harttia | authority = Steindachner, 1877<ref name = "Cof family">{{Cof family|family=Loricariinae|access-date=6 January 2025}}</ref> | display_parents = 2 | type_species = ''Harttia loricariformis'' | type_species_authority = Steindachner, 1877<ref name = "Cof family"/> | synonyms = * ''Quiritixys'' <small>Isbrücker, 2001</small> | synonyms_ref = <ref name = "Cof family"/> }}
'''''Harttia''''' is a genus of freshwater ray-finned fish is a species of freshwater ray-finned fishes belonging to the family Loricariidae, the suckermouth armored catfishes, and the subfamily Loricariinae, the mailed catfishes. The species in this genus are founsd in South America.
==Etymology== The genus name comes from Charles Frederick Hartt, a geologist, paleontologist and naturalist, who collected the many specimens during the Thayer Expedition to Brazil in the years 1865–1866.<ref name = ETYFish>{{cite web |url=https://etyfish.org/loricariinae/ |title=Family LORICARIIDAE: Subfamily LORICARIINAE Rafinesque 1815 (Suckermouth Armored Catfishes) |date=30 December 2025 |author=Christopher Scarpf |access-date=7 January 2026 |work=The ETYFish Project Fish Name Etymology Database |publisher=Christopher Scharpf}}</ref>
==Taxonomy== As of 1997, ''Harttia'' was considered a monophyletic taxon.<ref name="Langeani"/> However, ''Harttia'' is in need of revision. For example, the synonymy of ''Cteniloricaria'' with ''Harttia'' was questionable because it rested solely on the characteristics of ''Harttia fowleri'' without considering the type species of ''Cteniloricaria''.<ref name="Covain"/>
== Species == ''Harttia'' contains the following recognized species:<ref name = "Cof genus">{{Cof genus|genus=Harttia|access-date=7 January 2026}}</ref> {{Linked species list | Harttia absaberi | Oyakawa, Fichberg & Langeani, 2013 | Harttia canastra | Caldas, Cherobim & Langeani, 2022 | Harttia carvalhoi | P. Miranda-Ribeiro, 1939 | Harttia depressa | Rapp Py-Daniel & E. C. Oliveira, 2001 | Harttia dissidens | Rapp Py-Daniel & E. C. Oliveira, 2001 | Harttia duriventris | Rapp Py-Daniel & E. C. Oliveira, 2001 | Harttia fluminensis | Covain & Fisch-Muller, 2012 | Harttia fowleri | (Pellegrin, 1908) | Harttia garavelloi | Oyakawa, 1993 | Harttia gracilis | Oyakawa, 1993 | Harttia guianensis | Rapp Py-Daniel & E. C. Oliveira, 2001 | Harttia intermontana | J. C. Oliveira & Oyakawa, 2019 | Harttia kronei | A. Miranda Ribeiro, 1908 | Harttia leiopleura | Oyakawa, 1993 | Harttia longipinna | Langeani, Oyakawa & Montoya-Burgos, 2001 | Harttia loricariformis | Steindachner, 1877 | Harttia merevari | Provenzano, Machado-Allison, Chernoff, Willink & Petry, 2005 | Harttia novalimensis | Oyakawa 1993 | Harttia panara | Oyakawa, Fichberg & Rapp Py-Daniel, 2018 | Harttia punctata | Rapp Py-Daniel & E. C. Oliveira, 2001 | Harttia rhombocephala | P. Miranda Ribeiro, 1939 | Harttia rondoni | Oyakawa, Fichberg & Rapp Py-Daniel, 2018 | Harttia surinamensis | Boeseman, 1971 | Harttia torrenticola | Oyakawa, 1993 | Harttia trombetensis | Rapp Py-Daniel & E. C. Oliveira, 2001 | Harttia tuna | Covain & Fisch-Muller, 2012 | Harttia uatumensis | Rapp Py-Daniel & E. C. Oliveira, 2001 | Harttia villasboas | Oyakawa, Fichberg & Rapp Py-Daniel, 2018 }}
==Distribution and habitat== Distribution of ''Harttia'' species primarily includes rivers draining the Guyana Shield, coastal rivers in northeastern Brazil, and the Amazon River basin.<ref name="Covain"/> The greatest species diversity of ''Harttia'', occurs in the Pre-Cambrian Brazilian Shield region.<ref name="Langeani">{{cite journal|journal=Copeia|year=2001|issue=1|pages=136–142|title=New Species of ''Harttia'' (Loricariidae, Loricariinae) from the Rio São Francisco Basin|first=Francisco|last=Langeani|author2=Oyakawa, Osvaldo T. |author3=Montoya-Burgos, Juan I. |doi=10.1643/0045-8511(2001)001[0136:NSOHLL]2.0.CO;2|volume=2001|editor1-last=Schaefer|editor1-first=S. A.}}</ref> Only ''H. platystoma'' and ''H. merevari'' are known from Venezuela.<ref name="Provenzano">{{cite journal|title=''Harttia merevari'', a new species of catfish (Siluriformes: Loricariidae) from Venezuela|first=Francisco|last=Provenzano R.|author2=Machado-Allison, Antonio|author3=Chernoff, Barry|author4=Willink, Phil|author5=Petry, Paulo|journal=Neotropical Ichthyology|volume=3|issue=4|pages=519–524|year=2005|doi=10.1590/S1679-62252005000400009|doi-access=free}}</ref> These rheophilic fishes are found in the upper courses of rivers over rocky and sandy bottoms.<ref name="Covain"/> ''Harttia'' species are thought to be able to exploit areas with the strongest current, because of its extremely depressed body and long caudal peduncle, comparing to other species.<ref name="Covain">{{cite journal|url=http://www.mapress.com/zootaxa/2007f/zt01462p040.pdf|title=The genera of the Neotropical armored catfish subfamily Loricariinae (Siluriformes: Loricariidae): a practical key and synopsis|first=Raphael|last=Covain|author2=Fisch-Muller, Sonia|journal=Zootaxa|volume=1462|pages=1–40|year=2007|doi=10.11646/zootaxa.1462.1.1}}</ref>
==Description== Sexual dimorphism includes hypertrophied odontodes on the pectoral fin spines and along the margins of the snout in mature males.<ref name="Covain"/>
''Harttia'' exhibits considerable karyotypic diversity with chromosome numbers between 2n = 52 and 2n = 58 in the four species characterized.<ref name="Covain"/>
==Ecology== Representatives of this genus seem to be open brooders.<ref name="Covain"/>
==References== {{Reflist}}
==External links== * {{cite journal|url=http://phy043.tours.inra.fr:8080/archive/00000231/01/ID566.pdf|title=Les espèces du genre ''Harttia'' (Siluriformes: Loricariidae) en Guyane française: morphologie, taxinomie et distribution (French)|first=Raphaël|last=Covain|author2=Le Bail, Pierre-Yves|author3=Fisch-Muller, Sonia|journal=Cybium|year=2006|volume=30|issue=1|pages=3–18|url-status=dead|archiveurl=https://web.archive.org/web/20110718172050/http://phy043.tours.inra.fr:8080/archive/00000231/01/ID566.pdf|archivedate=2011-07-18}}
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Category:Harttia Category:Loricariinae Category:Fish of the Amazon basin Category:Catfish genera Category:Taxa named by Franz Steindachner Category:Freshwater fish genera