Elapidae is a family of snakes characterized by their permanently erect fangs at the front of the mouth. Most elapids are venomous, with the exception of the genus Emydocephalus. Many members of this family exhibit a threat display of rearing upwards while spreading out a neck flap. Elapids are endemic to tropical and subtropical regions around the world, with terrestrial forms in Asia, Australia, Africa, and the Americas and marine forms in the Pacific and Indian Oceans. Members of the family have a wide range of sizes, from the 18 cm (7.1 in) white-lipped snake to the 5.85 m king cobra. Most species have neurotoxic venom that is channeled by their hollow fangs, and some may contain other toxic components in varying proportions. The family includes 55 genera with around 360 species and over 170 subspecies.
The scarlet kingsnake is a species of kingsnake found in the southeastern and eastern portions of the United States. Like all kingsnakes, they are nonvenomous. They are found in pine flatwoods, hydric hammocks, pine savannas, mesic pine-oak forests, prairies, cultivated fields, and a variety of suburban habitats; not unusually, people find scarlet kingsnakes in their swimming pools, especially during the spring. Until recently, and for much of the 20th century, scarlet kingsnakes were considered a subspecies of the milk snake; however, Pyron and Bubrink demonstrated the phylogenetic distinction of this species and its closer relationship to the mountain kingsnakes of the southwestern United States. These largely fossorial snakes are the smallest of all the species within the genus Lampropeltis, usually ranging from 40 to 50 cm at maturity. The maximum recorded length is in Jonesboro, AR 76.2 cm (30.0 in). Hatchlings range in size from 8 to 18 cm .
The eastern brown snake, often referred to as the common brown snake, is a species of extremely venomous snake in the family Elapidae. The species is native to eastern and central Australia and southern New Guinea. It was first described by André Marie Constant Duméril, Gabriel Bibron, and Auguste Duméril in 1854. The adult eastern brown snake has a slender build and can grow to 2 m (7 ft) in length. The colour of its surface ranges from pale brown to black, while its underside is pale cream-yellow, often with orange or grey splotches. The eastern brown snake is found in most habitats except dense forests, often in farmland and on the outskirts of urban areas, as such places are populated by its main prey, the house mouse. The species is oviparous. The International Union for Conservation of Nature classifies the snake as a least-concern species, though its status in New Guinea is unclear.
The Cape cobra, also called the yellow cobra, is a moderate-sized, highly venomous species of cobra inhabiting a wide variety of biomes across southern Africa, including arid savanna, fynbos, bushveld, desert, and semidesert regions.
Ahaetulla, commonly referred to as Asian vine snakes or Asian whip snakes, is a genus of colubrid snakes distributed throughout tropical Asia. They are considered by some scientists to be mildly venomous and are what is commonly termed as 'rear-fanged' or more appropriately, opisthoglyphous, meaning their enlarged teeth or fangs, intended to aid in venom delivery, are located in the back of the upper jaw, instead of in the front as they are in vipers or cobras. As colubrids, Ahaetulla do not possess a true venom gland or a sophisticated venom delivery system. The Duvernoy's gland of this genus, homologous to the venom gland of true venomous snakes, produces a secretion which, though not well studied, is considered not to be medically significant to humans.
Psammophis is a genus of snakes in the family Psammophiidae. The genus comprises 33 species, which are found in Africa and Asia. Psammophis are diurnal and prey on lizards and rodents which they actively hunt. All species in the genus are venomous, and the venom is considered mild and not dangerous to humans.
The white-lipped snake is a small species of venomous snake in the family Elapidae. The species is endemic to south-eastern mainland Australia and Tasmania.
The California whipsnake, also known as the striped racer, is a colubrid snake found in habitats of the coast, desert, and foothills of California.
Demansia is a genus of venomous snakes of the family Elapidae. Members of the genus are commonly known as whip snakes or whipsnakes, as are members of several other genera.
Psammophylax rhombeatus is a reptile commonly found throughout Southern Africa. This mildly venomous snake has a similar role in its ecosystem and has many ancestral similarities to other Psammophis snakes.
Caryospora is a genus of parasitic protozoa in the phylum Apicomplexa. The species in this genus infect birds and reptiles with the majority of described species infecting snakes. It is the third largest genus in the family Eimeriidae.
The speckled brown snake or spotted brown snake is a species of venomous elapid snake native to northeastern Australia.
The olive whipsnake is a species of venomous snake in the family Elapidae.
The greater black whipsnake is a species of venomous snake in the family Elapidae.
The collared whipsnake is a medium-sized elapid endemic to Australia. It is found in rainforest edges and other tropical woodland areas as well as in rocky habitat and environments on offshore islands.
The soil-crack whip snake or crack-dwelling whipsnake is a species of venomous snake in the family Elapidae. It is only mildly venomous.
Shine's whipsnake also known commonly as Shine's Australian whipsnake, is a species of venomous snake in the family Elapidae. The species is endemic to Australia.
The little whip snake, also known commonly as the whip hooded snake, is a species of venomous snake in the family Elapidae. The species is endemic to Australia.
Psammophis mossambicus, the olive grass snake, is a snake species in the family Psammophiidae, the sand and whip snakes. P. mossambicus is native to Southern Africa, but may also be found in Central African Republic, Democratic Republic of the Congo, Gabon, Kenya, South Sudan, Tanzania, and Uganda, and as far north as southern Chad. This snake grows to 100 to 180 cm in length, and lives in somewhat moist places near a source of water. It is olive-brown in color, with dark-edged scales and a lighter-hued underside. It is often confused with the black mamba, as it can raise its head in a similar fashion to the mambas, cobras and other elapid snakes; however, unlike the aforementioned species, the olive grass snake is opisthoglyphous (rear-fanged), with small teeth located at the back of the mouth that deliver mild venom, primarily used for subduing small, slippery or "squirmy" prey such as frogs, lizards and some rodents. It is considered mildly venomous to humans. No deaths have been recorded, though possible side effects of envenomation may include localised pain and swelling, nausea and fatigue.
The desert whip snake is a species of venomous snake in the family Elapidae, identified as a new species in 2023. The species is endemic to Australia. Its venom is mild and not deadly for humans.
