n = 34
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Harttia absaberi | Oyakawa, Fichberg & Langeani, 2013 | Harttia absaberi | Loricariidae | |
| Harttia caquetae | Fowler, 1945 | Sturisoma caquetae | Loricariidae | |
| Harttia carvalhoi | Miranda Ribeiro, 1939 | Harttia carvalhoi | Loricariidae | |
| Harttia crassicauda | Boeseman, 1953 | Harttiella crassicauda | Loricariidae | |
| Harttia depressa | Rapp Py-Daniel & Oliveira, 2001 | Harttia depressa | Loricariidae | |
| Harttia dissidens | Rapp Py-Daniel & Oliveira, 2001 | Harttia dissidens | Loricariidae | |
| Harttia duriventris | Rapp Py-Daniel & Oliveira, 2001 | Harttia duriventris | Loricariidae | |
| Harttia filamentissima | Eigenmann & Allen, 1942 | Lamontichthys filamentosus | Loricariidae | |
| Harttia filamentosa | La Monte, 1935 | Lamontichthys filamentosus | Loricariidae | |
| Harttia fluminensis | Covain & Fisch-Muller, 2012 | Harttia fluminensis | Loricariidae | |
| Harttia fowleri | (Pellegrin, 1908) | Harttia fowleri | Loricariidae | |
| Harttia garavelloi | Oyakawa, 1993 | Harttia garavelloi | Loricariidae | |
| Harttia gracilis | Oyakawa, 1993 | Harttia gracilis | Loricariidae | |
| Harttia guianensis | Rapp Py-Daniel & Oliveira, 2001 | Harttia guianensis | Loricariidae | |
| Harttia intermontana | Oliveira & Oyakawa, 2019 | Genus Species | New species | |
| Harttia kronei | Miranda Ribeiro, 1908 | Harttia kronei | Loricariidae | |
| Harttia leiopleura | Oyakawa, 1993 | Harttia leiopleura | Loricariidae | |
| Harttia longipinna | Langeani, Oyakawa & Montoya-Burgos, 2001 | Harttia longipinna | Loricariidae | |
| Harttia loricariformis | Steindachner, 1877 | Harttia loricariformis | Loricariidae | |
| Harttia maculata | (Boeseman, 1971) | Cteniloricaria maculata | Loricariidae | |
| Harttia merevari | Provenzano, Machado-Allison, Chernoff, Willink & Petry, 2005 | Harttia merevari | Loricariidae | |
| Harttia microps | Eigenmann & Allen, 1942 | Pterosturisoma microps | Loricariidae | |
| Harttia nijsseni | Boeseman, 1976 | Metaloricaria nijsseni | Loricariidae | |
| Harttia novalimensis | Oyakawa, 1993 | Harttia novalimensis | Loricariidae | |
| Harttia panara | Oyakawa, Fichberg & Rapp Py-Daniel, 2018 | Harttia panara | Loricariidae | |
| Harttia punctata | Rapp Py-Daniel & Oliveira, 2001 | Harttia punctata | Loricariidae | |
| Harttia rhombocephala | Miranda Ribeiro, 1939 | Harttia rhombocephala | Loricariidae | |
| Harttia rondoni | Oyakawa, Fichberg & Rapp Py-Daniel, 2018 | Harttia rondoni | Loricariidae | |
| Harttia surinamensis | Boeseman, 1971 | Harttia surinamensis | Loricariidae | |
| Harttia torrenticola | Oyakawa, 1993 | Harttia torrenticola | Loricariidae | |
| Harttia trombetensis | Rapp Py-Daniel & Oliveira, 2001 | Harttia trombetensis | Loricariidae | |
| Harttia tuna | Covain & Fisch-Muller, 2012 | Harttia tuna | Loricariidae | |
| Harttia uatumensis | Rapp Py-Daniel & Oliveira, 2001 | Harttia uatumensis | Loricariidae | |
| Harttia villasboas | Oyakawa, Fichberg & Rapp Py-Daniel, 2018 | Harttia villasboas | Loricariidae |