Country: Brazil (377 species, 35 genera)
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Genera in Brazil
- Acrolebias (1)
- Amatolebias (1)
- Argolebias (1)
- Austrolebias (3)
- Campellolebias (5)
- Cynolebias (23)
- Cynopoecilus (5)
- Cypholebias (1)
- Fluviphylax (8)
- Garcialebias (14)
- Gymnolebias (1)
- Hypsolebias (58)
- Kryptolebias (7)
- Leptolebias (1)
- Leptopanchax (6)
- Maratecoara (4)
- Matilebias (9)
- Megalebias (1)
- Moema (11)
- Mucurilebias (1)
- Nematolebias (3)
- Neofundulus (6)
- Notholebias (4)
- Ophthalmolebias (6)
- Pituna (6)
- Plesiolebias (8)
- Prorivulus (1)
- Pterolebias (3)
- Rivulus (152)
- Simpsonichthys (9)
- Spectrolebias (5)
- Stenolebias (2)
- Titanolebias (2)
- Trigonectes (4)
- Xenurolebias (5)
Species List
| Photo | Species | Genus | Class | Country Guesses |
|---|---|---|---|---|
| Acrolebias carvalhoi img IMG IRF FB IUCN - CR | Acrolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Amatolebias varzeae IRF FB IUCN - VU | Amatolebias | Class 3: South American Annuals | Brazil HIGH |
| Argolebias nigripinnis img IMG IRF FB IUCN - NT | Argolebias | Class 3: South American Annuals | Argentina HIGH, Brazil HIGH, Paraguay HIGH, Uruguay HIGH | |
| No image | Austrolebias ephemerus IRF FB IUCN - CR | Austrolebias | Class 3: South American Annuals | Brazil HIGH |
| Austrolebias melanoorus img IMG IRF FB IUCN - NT | Austrolebias | Class 3: South American Annuals | Brazil HIGH, Uruguay HIGH | |
| No image | Austrolebias univentripinnis IRF FB IUCN - EN | Austrolebias | Class 3: South American Annuals | Brazil HIGH, Uruguay HIGH |
| Campellolebias brucei img IMG IRF FB IUCN - CR | Campellolebias | Class 3: South American Annuals | Brazil HIGH | |
| Campellolebias chrysolineatus img IMG IRF FB IUCN - CR | Campellolebias | Class 3: South American Annuals | Brazil HIGH | |
| Campellolebias dorsimaculatus img IMG IRF FB IUCN - CR | Campellolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Campellolebias insularis IRF FB IUCN - NE | Campellolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Campellolebias intermedius IRF FB IUCN - CR | Campellolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynolebias akroa IRF FB IUCN - CR | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| Cynolebias albipunctatus img IMG IRF | Cynolebias | Class 3: South American Annuals | Brazil LOW | |
| Cynolebias altus img IMG IRF FB IUCN - DD | Cynolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Cynolebias attenuatus IRF FB IUCN - LC | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynolebias elegans IRF FB IUCN - CR | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynolebias gibbus IRF FB IUCN - LC | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| Cynolebias gilbertoi img IMG IRF FB IUCN - LC | Cynolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Cynolebias gorutuba IRF FB IUCN - NE | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynolebias griseus IRF FB IUCN - CR | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| Cynolebias itapicuruensis img IMG IRF FB IUCN - DD | Cynolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Cynolebias leptocephalus IRF FB IUCN - EN | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynolebias microphthalmus IRF FB IUCN - LC | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynolebias obscurus IRF FB IUCN - CR | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynolebias ochraceus IRF FB IUCN - CR | Cynolebias | Class 3: South American Annuals | Brazil LOW |
| No image | Cynolebias oticus IRF FB IUCN - VU | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynolebias paraguassuensis IRF FB IUCN - DD | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynolebias parietalis IRF FB IUCN - NE | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynolebias parnaibensis IRF FB IUCN - DD | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| Cynolebias perforatus img IMG IRF FB IUCN - LC | Cynolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Cynolebias porosus IRF FB IUCN - LC | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynolebias rectiventer IRF FB IUCN - DD | Cynolebias | Class 3: South American Annuals | Brazil LOW |
| No image | Cynolebias roseus IRF FB IUCN - VU | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynolebias vazabarrisensis IRF FB IUCN - DD | Cynolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynopoecilus feltrini IRF | Cynopoecilus | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynopoecilus intimus IRF FB IUCN - VU | Cynopoecilus | Class 3: South American Annuals | Brazil HIGH |
| Cynopoecilus melanotaenia img IMG IRF FB IUCN - LC | Cynopoecilus | Class 3: South American Annuals | Brazil HIGH, Uruguay HIGH | |
| No image | Cynopoecilus nigrovittatus IRF FB IUCN - NT | Cynopoecilus | Class 3: South American Annuals | Brazil HIGH |
| No image | Cynopoecilus notabilis IRF FB IUCN - VU | Cynopoecilus | Class 3: South American Annuals | Brazil HIGH |
| Cypholebias vazferreirai img IMG IRF | Cypholebias | Class 3: South American Annuals | Brazil HIGH, Uruguay HIGH | |
| No image | Fluviphylax gouldingi IRF FB IUCN - NE | Fluviphylax | Class 1: New World Non-Annuals | Brazil HIGH |
| No image | Fluviphylax obscurus IRF FB IUCN - LC | Fluviphylax | Class 1: New World Non-Annuals | Brazil HIGH, Colombia HIGH, Venezuela HIGH |
| No image | Fluviphylax palikur IRF FB IUCN - LC | Fluviphylax | Class 1: New World Non-Annuals | Brazil HIGH, Guyana HIGH |
| Fluviphylax pygmaeus img IMG IRF FB IUCN - LC | Fluviphylax | Class 1: New World Non-Annuals | Brazil HIGH | |
| No image | Fluviphylax rubens IRF FB IUCN - NE | Fluviphylax | Class 1: New World Non-Annuals | Brazil LOW |
| No image | Fluviphylax simplex IRF FB IUCN - LC | Fluviphylax | Class 1: New World Non-Annuals | Brazil HIGH |
| No image | Fluviphylax wallacei IRF FB IUCN - NE | Fluviphylax | Class 1: New World Non-Annuals | Brazil HIGH |
| No image | Fluviphylax zonatus IRF FB IUCN - LC | Fluviphylax | Class 1: New World Non-Annuals | Brazil HIGH |
| No image | Garcialebias adloffi IRF FB IUCN - EN | Garcialebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Garcialebias arachan IRF FB IUCN - VU | Garcialebias | Class 3: South American Annuals | Brazil HIGH, Uruguay HIGH |
| No image | Garcialebias araucarianus IRF FB IUCN - DD | Garcialebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Garcialebias bagual IRF FB IUCN - CR | Garcialebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Garcialebias botocudo IRF FB IUCN - NE | Garcialebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Garcialebias charrua IRF FB IUCN - NT | Garcialebias | Class 3: South American Annuals | Brazil HIGH, Uruguay HIGH |
| No image | Garcialebias cheffei IRF FB IUCN - NE | Garcialebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Garcialebias lourenciano IRF FB IUCN - NE | Garcialebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Garcialebias minuano IRF FB IUCN - NT | Garcialebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Garcialebias nachtigalli IRF FB IUCN - VU | Garcialebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Garcialebias nigrofasciatus IRF FB IUCN - EN | Garcialebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Garcialebias nubium IRF FB IUCN - NE | Garcialebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Garcialebias pelotapes IRF FB IUCN - CR | Garcialebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Garcialebias pongondo IRF FB IUCN - NE | Garcialebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Gymnolebias jaegari IRF FB IUCN - EN | Gymnolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias adornatus img IMG IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias aff. flagellatus img IMG IRF FB IUCN - LC | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias alternatus img IMG IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias antenori img IMG IRF FB IUCN - LC | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias auratus img IMG IRF FB IUCN - CR | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias bonita IRF FB IUCN - NE | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias brunoi img IMG IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias caeruleus IRF FB IUCN - LC | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias carlettoi img IMG IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias coamazonicus IRF FB IUCN - LC | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias delucai img IMG IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias faouri IRF FB IUCN - CR | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias fasciatus img IMG IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias flagellatus img IMG IRF FB IUCN - LC | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias flammeus img IMG IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias flavicaudatus img IMG IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias fulminantis img IMG IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias gardneri IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias ghisolfii img IMG IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias gibberatus img IMG IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias gilbertobrasili IRF FB IUCN - CR | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Hypsolebias gongobira IRF FB IUCN - NE | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Hypsolebias guanambi IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Hypsolebias hamadryades IRF FB IUCN - CR | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Hypsolebias harmonicus IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias hellneri img IMG IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias heloplites img IMG IRF | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias igneus img IMG IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias janaubensis IRF FB IUCN - CR | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Hypsolebias longignatus IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Hypsolebias lopesi IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil LOW |
| No image | Hypsolebias lulai IRF FB IUCN - NE | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias macaubensis img IMG IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias magnificus img IMG IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias marginatus img IMG IRF FB IUCN - CR | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias martinsi IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Hypsolebias mediopapillatus IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Hypsolebias multiradiatus IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias nielseni img IMG IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias nitens IRF FB IUCN - LC | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias notatus img IMG IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias nudiorbitatus IRF FB IUCN - DD | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias ocellatus img IMG IRF FB IUCN - LC | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias picturatus img IMG IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias pterophyllus IRF FB IUCN - LC | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Hypsolebias radiosus IRF FB IUCN - DD | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Hypsolebias radiseriatus IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias rufus img IMG IRF FB IUCN - CR | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias sertanejo IRF FB IUCN - LC | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Hypsolebias shibattai IRF FB IUCN - CR | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias similis img IMG IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias sp. Urucuia img IMG IRF | Hypsolebias | Class 3: South American Annuals | Brazil LOW | |
| No image | Hypsolebias splendissimus IRF FB IUCN - CR | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias stellatus img IMG IRF FB IUCN - EN | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Hypsolebias tocantinensis IRF FB IUCN - CR | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Hypsolebias trifasciatus IRF FB IUCN - DD | Hypsolebias | Class 3: South American Annuals | Brazil HIGH |
| Hypsolebias trilineatus img IMG WAK IRF FB IUCN - VU | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Hypsolebias virgulatus img IMG IRF FB IUCN - CR | Hypsolebias | Class 3: South American Annuals | Brazil HIGH | |
| Kryptolebias brasiliensis img IMG IRF FB IUCN - EN | Kryptolebias | Class 2: Rivulus | Brazil HIGH | |
| No image | Kryptolebias campelloi IRF FB IUCN - CR | Kryptolebias | Class 2: Rivulus | Brazil HIGH |
| Kryptolebias caudomarginatus img IMG IRF FB IUCN - LC | Kryptolebias | Class 2: Rivulus | Brazil HIGH | |
| Kryptolebias dorni = brasiliensis img IMG IRF | Kryptolebias | Class 2: Rivulus | Brazil LOW | |
| No image | Kryptolebias gracilis IRF FB IUCN - CR | Kryptolebias | Class 2: Rivulus | Brazil HIGH |
| Kryptolebias hermaphroditus = ocellatus img IMG IRF FB IUCN - NE | Kryptolebias | Class 2: Rivulus | Brazil LOW | |
| Kryptolebias ocellatus img IMG IRF FB IUCN - LC | Kryptolebias | Class 2: Rivulus | Brazil HIGH | |
| No image | Leptolebias marmoratus IRF FB IUCN - CR | Leptolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Leptopanchax aureoguttatus IRF IUCN - LC | Leptopanchax | Class 3: South American Annuals | Brazil HIGH |
| No image | Leptopanchax fluminensis = opalescens IRF | Leptopanchax | Class 3: South American Annuals | Brazil LOW |
| No image | Leptopanchax itanhaensis IRF IUCN - CR | Leptopanchax | Class 3: South American Annuals | Brazil HIGH |
| No image | Leptopanchax opalescens IRF IUCN - CR | Leptopanchax | Class 3: South American Annuals | Brazil HIGH |
| No image | Leptopanchax sanguineus IRF | Leptopanchax | Class 3: South American Annuals | Brazil HIGH |
| No image | Leptopanchax splendens IRF IUCN - CR | Leptopanchax | Class 3: South American Annuals | Brazil HIGH |
| Maratecoara formosa img IMG IRF FB IUCN - VU | Maratecoara | Class 3: South American Annuals | Brazil HIGH | |
| No image | Maratecoara gesmonei IRF FB IUCN - LC | Maratecoara | Class 3: South American Annuals | Brazil HIGH |
| Maratecoara lacortei img IMG IRF FB IUCN - LC | Maratecoara | Class 3: South American Annuals | Brazil HIGH | |
| No image | Maratecoara splendida IRF FB IUCN - VU | Maratecoara | Class 3: South American Annuals | Brazil HIGH |
| Matilebias affinis img IMG IRF | Matilebias | Class 3: South American Annuals | Brazil HIGH, Uruguay HIGH | |
| Matilebias alexandri img IMG IRF FB IUCN - VU | Matilebias | Class 3: South American Annuals | Argentina HIGH, Brazil HIGH, Uruguay HIGH | |
| No image | Matilebias camaquensis IRF FB IUCN - EN | Matilebias | Class 3: South American Annuals | Brazil HIGH |
| Matilebias cyaneus img IMG IRF FB IUCN - EN | Matilebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Matilebias ibicuiensis IRF FB IUCN - EN | Matilebias | Class 3: South American Annuals | Brazil HIGH |
| Matilebias juanlangi img IMG IRF FB IUCN - NT | Matilebias | Class 3: South American Annuals | Brazil HIGH, Uruguay HIGH | |
| No image | Matilebias litzi IRF FB IUCN - VU | Matilebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Matilebias paucisquama IRF FB IUCN - VU | Matilebias | Class 3: South American Annuals | Brazil HIGH |
| Matilebias periodicus img IMG IRF FB IUCN - VU | Matilebias | Class 3: South American Annuals | Brazil HIGH | |
| Megalebias wolterstorffi img IMG IRF FB IUCN - LC | Megalebias | Class 3: South American Annuals | Brazil HIGH, Uruguay HIGH | |
| No image | Moema apurinan IRF FB IUCN - DD | Moema | Class 3: South American Annuals | Brazil HIGH |
| No image | Moema boticarioi IRF IUCN - DD | Moema | Class 3: South American Annuals | Brazil HIGH |
| No image | Moema heterostigma IRF FB IUCN - LC | Moema | Class 3: South American Annuals | Brazil HIGH |
| No image | Moema humaita IRF | Moema | Class 3: South American Annuals | Brazil HIGH |
| Moema nudifrontata img IMG IRF FB IUCN - LC | Moema | Class 3: South American Annuals | Brazil HIGH | |
| No image | Moema pepotei IRF FB IUCN - LC | Moema | Class 3: South American Annuals | Bolivia HIGH, Brazil HIGH |
| Moema piriana img IMG IRF FB IUCN - CR | Moema | Class 3: South American Annuals | Brazil HIGH | |
| Moema portugali img IMG IRF FB IUCN - LC | Moema | Class 3: South American Annuals | Brazil HIGH | |
| No image | Moema sp. BO IRF | Moema | Class 3: South American Annuals | Brazil LOW |
| No image | Moema sp. Peru IRF | Moema | Class 3: South American Annuals | Brazil LOW |
| Moema staecki img IMG IRF FB IUCN - LC | Moema | Class 3: South American Annuals | Brazil HIGH, Guyana HIGH | |
| No image | Mucurilebias leitaoi IRF FB IUCN - DD | Mucurilebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Nematolebias catimbau IRF FB IUCN - CR | Nematolebias | Class 3: South American Annuals | Brazil HIGH |
| Nematolebias papilliferus img IMG IRF FB IUCN - CR | Nematolebias | Class 3: South American Annuals | Brazil HIGH | |
| Nematolebias whitei img IMG IRF FB IUCN - EN | Nematolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Neofundulus acutirostratus IRF FB IUCN - CR | Neofundulus | Class 3: South American Annuals | Brazil HIGH |
| No image | Neofundulus aureomaculatus IRF FB IUCN - LC | Neofundulus | Class 3: South American Annuals | Brazil HIGH |
| No image | Neofundulus guaporensis IRF FB IUCN - DD | Neofundulus | Class 3: South American Annuals | Brazil HIGH |
| Neofundulus paraguayensis img IMG IRF FB IUCN - LC | Neofundulus | Class 3: South American Annuals | Brazil HIGH, Paraguay HIGH | |
| No image | Neofundulus parvipinnis IRF FB IUCN - LC | Neofundulus | Class 3: South American Annuals | Brazil HIGH |
| No image | Neofundulus rubrofasciatus IRF FB IUCN - NE | Neofundulus | Class 3: South American Annuals | Brazil HIGH |
| No image | Notholebias cruzi IRF FB IUCN - CR | Notholebias | Class 3: South American Annuals | Brazil LOW |
| No image | Notholebias fractifasciatus IRF FB IUCN - CR | Notholebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Notholebias minimus IRF FB IUCN - EN | Notholebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Notholebias vermiculatus IRF FB IUCN - EN | Notholebias | Class 3: South American Annuals | Brazil HIGH |
| Ophthalmolebias bokermanni img IMG IRF FB IUCN - CR | Ophthalmolebias | Class 3: South American Annuals | Brazil HIGH | |
| Ophthalmolebias constanciae img IMG IRF FB IUCN - CR | Ophthalmolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Ophthalmolebias ilheusensis IRF FB IUCN - CR | Ophthalmolebias | Class 3: South American Annuals | Brazil HIGH |
| Ophthalmolebias perpendicularis img IMG IRF FB IUCN - CR | Ophthalmolebias | Class 3: South American Annuals | Brazil HIGH | |
| Ophthalmolebias rosaceus img IMG IRF FB IUCN - VU | Ophthalmolebias | Class 3: South American Annuals | Brazil HIGH | |
| Ophthalmolebias suzarti img IMG IRF FB IUCN - VU | Ophthalmolebias | Class 3: South American Annuals | Brazil HIGH | |
| Pituna brevirostrata img IMG IRF FB IUCN - VU | Pituna | Class 3: South American Annuals | Brazil HIGH | |
| Pituna compacta img IMG IRF FB IUCN - LC | Pituna | Class 3: South American Annuals | Brazil HIGH | |
| No image | Pituna obliquoseriata IRF FB IUCN - LC | Pituna | Class 3: South American Annuals | Brazil HIGH |
| Pituna poranga img IMG IRF FB IUCN - LC | Pituna | Class 3: South American Annuals | Brazil HIGH | |
| No image | Pituna schindleri IRF FB IUCN - LC | Pituna | Class 3: South American Annuals | Brazil HIGH |
| No image | Pituna xinguensis IRF FB IUCN - NT | Pituna | Class 3: South American Annuals | Brazil HIGH |
| Plesiolebias altamira img IMG IRF FB IUCN - LC | Plesiolebias | Class 3: South American Annuals | Brazil HIGH | |
| Plesiolebias aruana img IMG IRF FB IUCN - LC | Plesiolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Plesiolebias canabravensis IRF FB IUCN - VU | Plesiolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Plesiolebias filamentosus IRF FB IUCN - LC | Plesiolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Plesiolebias fragilis IRF FB IUCN - LC | Plesiolebias | Class 3: South American Annuals | Brazil HIGH |
| Plesiolebias glaucopterus img IMG IRF FB IUCN - LC | Plesiolebias | Class 3: South American Annuals | Brazil HIGH | |
| Plesiolebias lacerdai img IMG IRF FB IUCN - LC | Plesiolebias | Class 3: South American Annuals | Brazil HIGH | |
| Plesiolebias xavantei img IMG IRF FB IUCN - EN | Plesiolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Prorivulus auriferus IRF FB IUCN - DD | Prorivulus | Class 2: Rivulus | Brazil HIGH |
| Pterolebias bokermanni img IMG IRF | Pterolebias | Class 3: South American Annuals | Argentina HIGH, Brazil HIGH, Paraguay HIGH | |
| Pterolebias longipinnis img IMG IRF FB IUCN - LC | Pterolebias | Class 3: South American Annuals | Argentina HIGH, Brazil HIGH | |
| Pterolebias phasianus img IMG IRF FB IUCN - LC | Pterolebias | Class 3: South American Annuals | Bolivia HIGH, Brazil HIGH | |
| Rivulus aff. geayi img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil LOW | |
| No image | Rivulus aff. tessellatus IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil LOW |
| No image | Rivulus aithogrammus IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus amambaiensis IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus amanan IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus amanapira IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus anitae IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus apiamici img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| No image | Rivulus atlanticus IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus atratus IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH, Colombia HIGH, Peru HIGH |
| Rivulus bahianus img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| Rivulus beniensis beniensis img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Bolivia HIGH, Brazil HIGH, Peru HIGH | |
| Rivulus bondi = hartii img IMG IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil LOW | |
| No image | Rivulus bororo IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus breviceps img IMG IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil LOW | |
| No image | Rivulus britzkei IRF IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus cajariensis IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus canesi IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus cearensis IRF FB IUCN - CR | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus cf. limoncochae img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil LOW | |
| Rivulus cf. monikae img IMG WAK IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil LOW | |
| Rivulus cf. ornatus img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| No image | Rivulus cf. sladkowskii IRF | Rivulus | Class 2: Rivulus | Brazil LOW |
| No image | Rivulus cf. tessellatus IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil LOW |
| No image | Rivulus christinae IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH, Peru HIGH |
| No image | Rivulus crixas IRF FB IUCN - VU | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus cryptocallus img IMG IRF FB IUCN - EN | Rivulus | Class 2: Rivulus | Brazil LOW | |
| Rivulus cyanopterus img IMG IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| No image | Rivulus dapazi IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH, Mexico HIGH |
| No image | Rivulus decoratus IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus depressus IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus dibaphus img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| No image | Rivulus egens IRF FB IUCN - CR | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus elongatus img IMG IRF FB IUCN - NT | Rivulus | Class 2: Rivulus | Brazil HIGH, Peru HIGH | |
| No image | Rivulus enigmaticus IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus falconi IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus faucireticulatus IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus flavipinnis IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus formosensis IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus gamae IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus geayi img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH, Guyana HIGH, Suriname HIGH | |
| No image | Rivulus giarettai IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus gili IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus guanabarensis IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus haraldsiolii IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH, Bolivia HIGH |
| Rivulus hendrichsi = tenuis img IMG IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil LOW | |
| No image | Rivulus henschelae IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus hoetmeri IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus ignescens IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus igneus img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH, Guyana HIGH | |
| Rivulus illuminatus img IMG IRF FB IUCN - VU | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| No image | Rivulus imperatrizensis IRF FB IUCN - CR | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus insulaepinorum = cylindraceus img IMG IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil LOW | |
| No image | Rivulus interruptus IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus ivinhemensis IRF FB IUCN - EN | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus jalapensis IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus janeiroensis img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| No image | Rivulus jari IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus jauaperi IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus javahe IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus jurubatibensis IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus karaja IRF FB IUCN - VU | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus katukina IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus kayabi IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus kayapo IRF FB IUCN - VU | Rivulus | Class 2: Rivulus | Brazil LOW |
| Rivulus kirovskyi img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| No image | Rivulus kunzei IRF FB IUCN - VU | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus larissae IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus lazzarotoi img IMG IRF FB IUCN - CR | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| No image | Rivulus leali IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus leulingi IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus limoncochae img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH, Colombia HIGH, Ecuador HIGH | |
| No image | Rivulus linearis IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus litteratus IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus luitalimae IRF FB IUCN - EN | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus manaensis IRF | Rivulus | Class 2: Rivulus | Brazil LOW |
| No image | Rivulus maricensis IRF FB IUCN - CR | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus megaroni IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus melanopterus IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus micropus img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| Rivulus milesi = magdalenae img IMG IRF | Rivulus | Class 2: Rivulus | Brazil LOW | |
| Rivulus modestus img IMG WAK IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| No image | Rivulus nelsoni IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus nigromarginatus IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus nigropunctatus IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus nudiventris IRF FB IUCN - CR | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus obscurus = ornatus img IMG IRF | Rivulus | Class 2: Rivulus | Brazil LOW | |
| No image | Rivulus ofaie IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus ophiomimus img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH, Peru HIGH | |
| No image | Rivulus origuelai IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus ornatus img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH, Colombia HIGH | |
| No image | Rivulus ottonii IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus paracatuensis IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus paranaguensis IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus paresi IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus parnaibensis IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus peruibensis IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus petrisecundi IRF IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus pictus img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| No image | Rivulus pindorama IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus pinima IRF FB IUCN - EN | Rivulus | Class 2: Rivulus | Brazil HIGH, Colombia HIGH |
| No image | Rivulus planaltinus IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus poeyi = urophthalmus img IMG IRF | Rivulus | Class 2: Rivulus | Brazil LOW | |
| No image | Rivulus polychromus IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus proximus IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus punctatus img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Argentina HIGH, Bolivia HIGH, Brazil HIGH, Paraguay HIGH | |
| No image | Rivulus regularis IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus ribeirensis IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus riograndensis IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus roloffi img IMG IRF FB IUCN - NT | Rivulus | Class 2: Rivulus | Brazil LOW | |
| No image | Rivulus romeri IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus roraima IRF FB IUCN - EN | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus rossoi IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus rubrolineatus img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH, Colombia HIGH, Peru HIGH | |
| No image | Rivulus rubromarginatus IRF FB IUCN - VU | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus rubroreticulatus IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus rutilicaudus IRF FB IUCN - VU | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus salmonicaudus IRF FB IUCN - VU | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus santensis img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| Rivulus scalaris img IMG IRF FB IUCN - EN | Rivulus | Class 2: Rivulus | Brazil HIGH, Costa Rica HIGH | |
| No image | Rivulus schuncki IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus simplicis img IMG IRF FB IUCN - EN | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| No image | Rivulus sp. Cano Sangre IRF | Rivulus | Class 2: Rivulus | Brazil LOW |
| No image | Rivulus sp. Cerro Wawa IRF | Rivulus | Class 2: Rivulus | Brazil LOW |
| No image | Rivulus sp. Chigorodo IRF | Rivulus | Class 2: Rivulus | Brazil LOW |
| Rivulus sp. Colombia img IMG IRF | Rivulus | Class 2: Rivulus | Brazil LOW | |
| No image | Rivulus sp. monteloro IRF | Rivulus | Class 2: Rivulus | Brazil LOW |
| No image | Rivulus sp. Rio Cuiari IRF | Rivulus | Class 2: Rivulus | Brazil LOW |
| No image | Rivulus sp. Rumiyacu IRF | Rivulus | Class 2: Rivulus | Brazil LOW |
| No image | Rivulus sp. Zaragosa IRF | Rivulus | Class 2: Rivulus | Brazil LOW |
| No image | Rivulus spixi IRF IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus strigatus IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus terena IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus tocantinensis IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus torrenticola img IMG IRF FB IUCN - NE | Rivulus | Class 2: Rivulus | Brazil LOW | |
| No image | Rivulus tupinambas IRF | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus uakti IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus uatuman IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus ubim IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus ubirajarai IRF FB IUCN - VU | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus unaensis IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus urophthalmus img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH, Guyana HIGH | |
| No image | Rivulus urubuiensis IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus villwocki IRF FB IUCN - DD | Rivulus | Class 2: Rivulus | Brazil HIGH, Panama HIGH |
| Rivulus violaceus img IMG IRF FB IUCN - NT | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| No image | Rivulus vittatus IRF FB IUCN - EN | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus volcanus – hildebrandi img IMG IRF | Rivulus | Class 2: Rivulus | Brazil LOW | |
| No image | Rivulus wallacei IRF FB IUCN - NT | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus xanthonotus IRF FB IUCN - EN | Rivulus | Class 2: Rivulus | Brazil HIGH |
| No image | Rivulus xinguensis IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH |
| Rivulus xiphidius img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH, Guyana HIGH | |
| Rivulus zygonectes img IMG IRF FB IUCN - LC | Rivulus | Class 2: Rivulus | Brazil HIGH | |
| Simpsonichthys boitonei img IMG IRF FB IUCN - EN | Simpsonichthys | Class 3: South American Annuals | Brazil HIGH | |
| No image | Simpsonichthys cholopteryx IRF FB IUCN - EN | Simpsonichthys | Class 3: South American Annuals | Brazil HIGH |
| No image | Simpsonichthys espinhacensis IRF | Simpsonichthys | Class 3: South American Annuals | Brazil HIGH |
| No image | Simpsonichthys margaritatus IRF FB IUCN - DD | Simpsonichthys | Class 3: South American Annuals | Brazil HIGH |
| Simpsonichthys nigromaculatus img IMG IRF FB IUCN - VU | Simpsonichthys | Class 3: South American Annuals | Brazil HIGH | |
| Simpsonichthys parallelus img IMG IRF FB IUCN - EN | Simpsonichthys | Class 3: South American Annuals | Brazil HIGH | |
| Simpsonichthys punctulatus img IMG IRF FB IUCN - VU | Simpsonichthys | Class 3: South American Annuals | Brazil HIGH | |
| Simpsonichthys santanae img IMG IRF FB IUCN - EN | Simpsonichthys | Class 3: South American Annuals | Brazil HIGH | |
| Simpsonichthys zonatus img IMG IRF FB IUCN - CR | Simpsonichthys | Class 3: South American Annuals | Brazil HIGH | |
| Spectrolebias costai img IMG IRF FB IUCN - LC | Spectrolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Spectrolebias gracilis IRF FB IUCN - VU | Spectrolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Spectrolebias inaequipinnatus IRF FB IUCN - LC | Spectrolebias | Class 3: South American Annuals | Brazil HIGH |
| Spectrolebias reticulatus img IMG IRF FB IUCN - NT | Spectrolebias | Class 3: South American Annuals | Brazil HIGH | |
| Spectrolebias semiocellatus img IMG IRF FB IUCN - LC | Spectrolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Stenolebias bellus IRF FB IUCN - DD | Stenolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Stenolebias damascenoi IRF FB IUCN - LC | Stenolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Titanolebias cheradophilus IRF FB IUCN - VU | Titanolebias | Class 3: South American Annuals | Brazil HIGH, Uruguay HIGH |
| No image | Titanolebias prognathus IRF FB IUCN - VU | Titanolebias | Class 3: South American Annuals | Brazil HIGH, Uruguay HIGH |
| Trigonectes balzanii img IMG IRF FB IUCN - LC | Trigonectes | Class 3: South American Annuals | Argentina HIGH, Bolivia HIGH, Brazil HIGH, Paraguay HIGH | |
| No image | Trigonectes macrophthalmus IRF FB IUCN - DD | Trigonectes | Class 3: South American Annuals | Brazil HIGH |
| Trigonectes rubromarginatus img IMG IRF FB IUCN - LC | Trigonectes | Class 3: South American Annuals | Brazil HIGH | |
| Trigonectes strigabundus img IMG IRF FB IUCN - EN | Trigonectes | Class 3: South American Annuals | Brazil HIGH | |
| No image | Xenurolebias cricarensis IRF FB IUCN - NE | Xenurolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Xenurolebias izecksohni IRF FB IUCN - VU | Xenurolebias | Class 3: South American Annuals | Brazil HIGH |
| Xenurolebias myersi img IMG WAK IRF FB IUCN - EN | Xenurolebias | Class 3: South American Annuals | Brazil HIGH | |
| No image | Xenurolebias pataxo IRF FB IUCN - NE | Xenurolebias | Class 3: South American Annuals | Brazil HIGH |
| No image | Xenurolebias tupinikin IRF FB IUCN - NE | Xenurolebias | Class 3: South American Annuals | Brazil HIGH |