Colubridae

Nerodia floridana (Goff, 1936)

Nerodia floridana is North America's largest watersnake found across the southeastern US in calm vegetated wetlands, giving birth to live young.

Nerodia harteri (Trapido, 1941)

Nerodia harteri, the Brazos water snake, is a small aquatic snake found only in Central Texas' Brazos River system.

Nerodia fasciata (Linnaeus, 1766)

Nerodia fasciata, the banded water snake, is a North American water snake often mistaken for venomous cottonmouths.

Nerodia clarkii (Baird & Girard, 1853)

Nerodia clarkii, or salt marsh snake, is a semi-aquatic non-venomous North American coastal snake that gives live birth.

Nerodia cyclopion (Duméril, Bibron & Duméril, 1854)

Nerodia cyclopion, the green water snake, is a heavy-bodied North American ovoviviparous water snake found in the Mississippi Valley and Gulf Coast.

Nerodia erythrogaster (Forster, 1771)

Nerodia erythrogaster, the plain-bellied water snake, is a large patternless North American water snake with an unmarked belly.

Natrix maura (Linnaeus, 1758)

Natrix maura, the viperine snake, is a scaled reptile found across southwestern Europe and northwestern Africa in aquatic habitats.

Natrix tessellata (Laurenti, 1768)

Natrix tessellata, the dice snake, is a nonvenomous Eurasian colubrid water snake living near aquatic habitats.

Natrix helvetica (Lacépède, 1789)

Natrix helvetica, the barred grass snake, is a collared, metre-long reptile found across Western Europe with a wide range of habitats.

Natrix astreptophora Seoane, 1885

Natrix astreptophora, the red-eyed grass snake, is a distinct Natrix species with fragmented ranges in southwestern Europe and North Africa.

Natrix natrix (Linnaeus, 1758)

Natrix natrix, the grass snake, is a widespread Eurasian reptile with a distinct neck collar that lays eggs in warm, humid rotting vegetation.

Amphiesma stolatum (Linnaeus, 1758)

Amphiesma stolatum, the buff striped keelback, is a small diurnal terrestrial snake found across South and Southeast Asia.

Hebius monticola (Jerdon, 1853)

Hebius monticola is a small slender snake that lives in forest leaf litter, with defined scale and color patterns.

Hebius vibakari (Boie, 1826)

Hebius vibakari is a small keeled-scaled snake found across parts of East Asia and the Russian Far East.

Hebius pryeri (Boulenger, 1887)

Pryer's keelback (Hebius pryeri) is a colubrid snake found on the Ryukyu Islands that can host Amblyomma geoemydae tick larvae.

Hebius sauteri (Boulenger, 1909)

Hebius sauteri is an endemic Asian colubrid snake found in southern China, Taiwan, and northern Vietnam.

Liodytes alleni (Garman, 1874)

Liodytes alleni, the striped crayfish snake, is a semiaquatic North American snake found mostly in Florida and southeastern Georgia.

Liodytes pygaea (Cope, 1871)

Liodytes pygaea, the black swamp snake, is a small US-native ovoviviparous snake that lives in vegetated swamplands.

Liodytes rigida (Say, 1825)

Liodytes rigida is a heavy-bodied North American snake with keeled midbody scales and a viviparous reproductive strategy.

Fowlea asperrimus (Boulenger, 1891)

Fowlea asperrimus is a moderately sized water snake found across multiple aquatic habitats in Sri Lanka.

Fowlea flavipunctatus (Hallowell, 1860)

Fowlea flavipunctatus, the yellow-spotted keelback, is a diurnal semiaquatic colubrid snake found across East and Southeast Asia.

Fowlea melanzostus (Gravenhorst, 1807)

Fowlea melanzostus is an endemic Indonesian oviparous colubrid snake found in Java and Bali.

Fowlea piscator (Schneider, 1799)

Fowlea piscator, the checkered keelback, is an oviparous medium-sized snake found across South and Southeast Asia.

Xenochrophis vittatus (Linnaeus, 1758)

Xenochrophis vittatus, the striped keelback, is a mildly venomous, human-harmless snake native to western Indonesia and introduced elsewhere.