n = 6
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Lepthoplosternum altamazonicum | Reis, 1997 | Lepthoplosternum altamazonicum | Callichthyidae | Ucayali catfish |
| Lepthoplosternum beni | Reis, 1997 | Lepthoplosternum beni | Callichthyidae | Tambopata catfish |
| Lepthoplosternum pectorale | (Boulenger, 1895) | Lepthoplosternum pectorale | Callichthyidae | Chaco catfish |
| Lepthoplosternum stellatum | Reis & Kaefer, 2005 | Lepthoplosternum stellatum | Callichthyidae | Igarapé catfish |
| Lepthoplosternum tordilho | Reis, 1997 | Lepthoplosternum tordilho | Callichthyidae | Lagoon catfish |
| Lepthoplosternum ucamara | Reis & Kaefer, 2005 | Lepthoplosternum ucamara | Callichthyidae | Ucamara catfish |