n = 36
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Callichthys adspersus | Steindachner, 1876 | Dianema longibarbis | Callichthyidae | Porthole catfish |
| Callichthys aeneus | (Gill, 1858) | Corydoras aeneus | Callichthyidae | Bronze corydoras |
| Callichthys affinis | Günther, 1864 | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys albidus | Valenciennes, 1840 | Hoplosternum littorale | Callichthyidae | Atipa |
| Callichthys arcifer | Hensel, 1868 | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys armatus | Günther, 1868 | Corydoras armatus | Callichthyidae | Sail cory |
| Callichthys asper | Quoy & Gaimard, 1824 | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys barbatus | Quoy & Gaimard, 1824 | Scleromystax barbatus | Callichthyidae | Banded corydoras |
| Callichthys caelatus | Valenciennes, 1840 | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys callichthys | (Linnaeus, 1758) | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys callichthys bolteni | Hoedeman, 1952 | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys callichthys demararae | Hoedeman, 1952 | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys chiquitos | Castelnau, 1855 | Hoplosternum littorale | Callichthyidae | Atipa |
| Callichthys depressus | (Swainson, 1839) | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys exaratus | Müller & Troschel, 1849 | Megalechis thoracata | Callichthyidae | |
| Callichthys fabricioi | Román-Valencia, Lehmann A. & Muñoz, 1999 | Callichthys fabricioi | Callichthyidae | Western catfish |
| Callichthys hemiphractus | Hensel, 1868 | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys kneri | Gill, 1858 | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys laeviceps | Valenciennes, 1840 | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys laevigatus | Valenciennes, 1834 | Hoplosternum littorale | Callichthyidae | Atipa |
| Callichthys littoralis | Hancock, 1828 | Hoplosternum littorale | Callichthyidae | Atipa |
| Callichthys longifilis | Valenciennes, 1840 | Megalechis thoracata | Callichthyidae | |
| Callichthys loricatus | Gronow, 1854 | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys melampterus | Cope, 1872 | Hoplosternum littorale | Callichthyidae | Atipa |
| Callichthys oibaensis | Ardila Rodríguez, 2006 | Callichthys oibaensis | Callichthyidae | Oibita catfish |
| Callichthys paleatus | Jenyns, 1842 | Corydoras paleatus | Callichthyidae | Peppered corydoras |
| Callichthys pectoralis | Boulenger, 1895 | Lepthoplosternum pectorale | Callichthyidae | Chaco catfish |
| Callichthys personatus | Ranzani, 1841 | Megalechis thoracata | Callichthyidae | |
| Callichthys pictus | Müller & Troschel, 1849 | Megalechis picta | Callichthyidae | Spotted hoplo |
| Callichthys serralabium | Lehmann A. & Reis, 2004 | Callichthys serralabium | Callichthyidae | Sawlipped catfish |
| Callichthys splendens | Castelnau, 1855 | Corydoras splendens | Callichthyidae | Emerald catfish |
| Callichthys subulatus | Valenciennes, 1840 | Hoplosternum littorale | Callichthyidae | Atipa |
| Callichthys sulcatus | Kner, 1855 | Megalechis picta | Callichthyidae | Spotted hoplo |
| Callichthys taiosh | Castelnau, 1855 | Corydoras splendens | Callichthyidae | Emerald catfish |
| Callichthys tamoata | Bleeker, 1864 | Callichthys callichthys | Callichthyidae | Cascarudo |
| Callichthys thoracatus | Valenciennes, 1840 | Megalechis thoracata | Callichthyidae |