Country: Brazil
Distribution of Terrestrial Snakes in South America and the West Indies
Elapids
| Leptomicrurus collaris | N | Roraima, Ampa |
| Leptomicrurus narducci | NW | |
| Leptomicrurus scutiventris | NW |
| Micrurus albicinctus | NW | Rondonia, Mato Grosso, Amazonas |
| Micrurus altirostris | S | |
| Micrurus annellatus | W | |
| Micrurus averyi | N | |
| Micrurus boicora | W | Rodonia |
| Micrurus brasiliensis | C+E | |
| Micrurus corallinus | S | |
| Micrurus decoratus | E+SE | |
| Micrurus diana | W | W Mato Grosso |
| Micrurus diutius | N+NE | |
| Micrurus filiformis | N | |
| Micrurus frontalis | C+S | |
| Micrurus hemprichii | N | |
| Micrurus ibiboboca | E | |
| Micrurus isozonus | N | Roraima |
| Micrurus janisrozei | E | Bahia |
| Micrurus langsdorffi | NW | |
| Micrurus lemniscatus | X | |
| Micrurus mipartitus | W | Rondonia |
| Micrurus nattereri | N | |
| Micrurus obscurus | NW | |
| Micrurus ortonii | W | Amazonas |
| Micrurus pacaraimae | N | Roraima |
| Micrurus paraensis | NE+W+C | |
| Micrurus potyguara | NE | |
| Micrurus psyches | NE | |
| Micrurus putumayensis | NW | |
| Micrurus pyrrhocryptus | SW | SW Mato Grosso |
| Micrurus remotus | NW+W | |
| Micrurus silviae | S | Rio Grande do Sul |
| Micrurus spixii | N+W+C | |
| Micrurus surinamensis | N+W+C | Mato Grosso, Para |
| Micrurus tikuna | W |
Pit Vipers
| Bothriopsis bilineata | NW+N+E | |
| Bothriopsis taeniata | N+W |
| Bothrocophias hyoprora | NW | |
| Bothrocophias microphthalmus | W |
| Bothrops alcatraz | SE | on Ilha Alcatrazes only |
| Bothrops alternatus | S | |
| Bothrops atrox | N+W | |
| Bothrops brazili | N+W | |
| Bothrops cotiara | SE | |
| Bothrops diporus | S | |
| Bothrops erythromelas | NE | |
| Bothrops fonsecai | SE | |
| Bothrops germanoi | SE | Sao Paulo: Ilha da Moela only |
| Bothrops insularis | SE | Sao Paulo: Ilha Queimada Grande only |
| Bothrops itapetiningae | SE | |
| Bothrops jabrensis | E | Paraíba: Pico do Jabre |
| Bothrops jararaca | SE | |
| Bothrops jararacussu | E+S | |
| Bothrops leucurus | E | |
| Bothrops lutzi | E | |
| Bothrops marajoensis | N | |
| Bothrops marmoratus | X | |
| Bothrops matogrossensis | C+E | |
| Bothrops moojeni | C | |
| Bothrops muriciensis | E | |
| Bothrops neuwiedi | E+SE | |
| Bothrops oligobalius | NE | Amapá |
| Bothrops otavioi | SE | Vitoria Island only |
| Bothrops pauloensis | C+SE | |
| Bothrops pirajai | E | |
| Bothrops pubescens | S | |
| Bothrops sazimai | SE | Ilha dos Franceses |
| Crotalus durissus cascavella | X | |
| Crotalus durissus collilineatus | NE+C | |
| Crotalus durissus durissus | N | |
| Crotalus durissus marajoensis | E | |
| Crotalus durissus ruruima | N | |
| Crotalus durissus terrificus | SE | |
| Crotalus durissus trigonicus | N |
| Lachesis muta | NW+N+W+C | incl. Marajo Island |
| Lachesis rhombeata | NE+E |