| Nombre científico | Nombre de FishBase | Territory | Localidad | Date taken | Photo |
|---|---|---|---|---|---|
| Dajaus monticola | Mountain mullet | Costa Rica | Río Corobicí, Cañas | 2006-04-26 |  |
| Dajaus monticola | Mountain mullet | Costa Rica | Río Corobicí, Cañas | 2006-04-26 |  |
| Cribroheros diquis | Costa Rica | Parrita River |  |
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| Astyanax aeneus | Banded tetra | Costa Rica | Chachagua River |  |
|
| Atherinella chagresi | Costa Rica | Parismina River |  |
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| Atherinella hubbsi | Costa Rica | Peñas Blancas River Basin, San Ramón |  |
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| Atherinella milleri | Costa Rica | Parismina River |  |
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| Brachyrhaphis olomina | Olomina toothcarp | Costa Rica | Pirrís River |  |
|
| Bryconamericus scleroparius | Costa Rica | Peñas Blancas River Basin, San Ramón |  |
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| Bryconamericus terrabensis | Costa Rica | Río General |  |
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| Bryconamericus terrabensis | Costa Rica | Río General |  |
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| Citharichthys uhleri | Voodoo whiff | Costa Rica |  |
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| Gymnotus cylindricus | Costa Rica | Cuenca media río Reventazón |  |
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| Gymnotus maculosus | Spotted knifefish | Costa Rica | Río Peñas Blancas, San Ramón de Alajuela |  |
|
| Hyphessobrycon savagei | Costa Rica | Parrita River |  |
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| Parachromis loisellei | Costa Rica |  |
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| Poecilia gillii | Gill's molly | Costa Rica | Río Peñas Blancas |  |
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| Priapichthys annectens | Orange finned toothcarp | Costa Rica | Peñas Blancas River Basin, San Ramón |  |
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| Pseudophallus elcapitanensis | Costa Rica | Parrita River |  |
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| Pseudophallus elcapitanensis | Costa Rica | Parrita River |  |
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| Cynodonichthys isthmensis | Costa Rica | Río Burro, Los Angeles de la Fortuna |  |
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| Cynodonichthys isthmensis | Costa Rica | Río Burro, Los Angeles de la Fortuna |  |
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| Roeboides bouchellei | Crystal tetra | Costa Rica | Río Chachagua, San Ramón |  |
|
| Roeboides ilseae |  |
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| Sicydium altum | Costa Rica | río Reventazón |  |
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| Sicydium altum | Costa Rica | río Reventazón |  |
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| Tomocichla tuba | Costa Rica | 2005-01-11 |  |
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| Tomocichla tuba | Costa Rica |  |