This is a list of reptiles in Costa Rica.
Lizards
Family Corytophanidae
Genus Basiliscus (brown basilisk, common basilisk, plumed basilisk) Genus Corytophanes (helmeted iguana) Genus Laemanctus (casquehead iguana)
Family Dactyloidae
Genus Anolis (Anolis insignis, Anolis microtus)
Family Gekkonidae
Genus Gonatodes (yellow-headed gecko) Genus Hemidactylus (common house gecko) Genus Lepidoblepharis (Costa Rica scaly-eyed gecko) Genus Sphaerodactylus (yellow-tailed dwarf gecko, spotted dwarf gecko) Genus Lepidodactylus (mourning gecko)
Family Iguanidae
Genus Ctenosaura (black spiny-tailed iguana) Genus Iguana (green iguana)
Family Phyllodactylidae
Genus Thecadactylus (turnip-tailed gecko)
Family Polychrotidae
Genus Norops (21 species, including blue-eyed anole, Carpenter's anole, green tree anole, ground anole, lemur anole, lichen anole, many-scaled anole, pug-nosed anole, slender anole, stream anole, water anole) Genus Polychrus (neotropical chameleon)
Family Scincidae
Mabuya unamarginata
Family Teiidae
Anadia ocellata
Holcosus quadrilineatus
Holcosus festivus
Ptychoglossus plicatus
Family Xantusiidae
Lepidophyma reticulatum
Snakes
Family Anomalepididae
Anomalepis mexicana
Helminthophis frontalis
Liotyphlops albirostris
Family Boidae
Boa constrictor
Boa imperator
Epicrates cenchria
Family Colubridae
Amastridium veliferum (rufous-headed snake) Chironius exoletus Clelia clelia Drymobius melanotropis (black forest racer) Drymobius margaritiferus (speckled racer) Enulius sclateri Erythrolampus mimus Imantodes cenchoa Lampropeltis triangulatum Leptophis ahaetulla (parrot snake) Liophis epinphalus Leptodeira septentrionalis Mastigodryas melanolomus Ninia maculata Scaphiodontophis venustissimus Senticolis triaspis (green rat snake) Stenorrhina degenhardtii Stenorrhina fremenvilli Genus Tantilla (centipede snakes) Thamnophis proximus Xenodon rhabdocephalus
Family Elapidae
Micrurus alleni
Micrurus mipartitus
Family Leptotyphlopidae
Leptotyphlops goudotii
Family Loxocemidae
Loxocemus bicolor
Family Tropidophiidae
Ungaliophis panamensis
Family Typhlopidae
Typhlops costaricensis
Family Viperidae
Atropoides nummifer
Atropoides picadoi
Bothriechis lateralis
Bothriechis schlegelii
Bothrops asper
Porthidium nasutum
Lachesis stenophrys Cope 1875 Nicaragua, Costa Rica, Panama
Lachesis melanocephala Solòrzano & Cerdas 1986 southeastern Costa Rica and adjoining areas of western Panama