The katuali or flat-tail sea snake (''Laticauda schistorhyncha'') is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

venomous Venom or zootoxin is a type of toxin produced by an animal that is actively delivered through a wound by means of a bite, sting, or similar action. The toxin is delivered through a specially evolved ''venom apparatus'', such as fangs or a sti ...

sea snake Sea snakes, or coral reef snakes, are elapid snakes that inhabit marine environments for most or all of their lives. They belong to two subfamilies, Hydrophiinae and Laticaudinae. Hydrophiinae also includes Australasian terrestrial snakes, wher ...

in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Elapidae Elapidae (, commonly known as elapids ; grc, ἔλλοψ ''éllops'' "sea-fish") 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 Emydoceph ...

. The species is found only in the waters of the

Pacific Islands Collectively called the Pacific Islands, the islands in the Pacific Ocean are further categorized into three major island groups: Melanesia, Micronesia, and Polynesia. Depending on the context, the term ''Pacific Islands'' may refer to one of se ...

nation of

Niue Niue (, ; niu, Niuē) is an island country in the South Pacific Ocean, northeast of New Zealand. Niue's land area is about and its population, predominantly Polynesian, was about 1,600 in 2016. Niue is located in a triangle between Tong ...

Description

''L. schistorhyncha'' grows to a total length (including tail) of up to , and is highly venomous, making it one of the most potentially dangerous creatures on the planet. It has a fin-like tail, helping it to swim better.

Habitat

The katuali lives most of its adult life in the sea.

Reproduction

During mating, the male katuali wraps itself around the female until she is fertilized. Because the eggs would not survive in water, the female swims into a sea cave to lay the eggs in dry crevices. These eggs take six months to hatch, and then the infant snakes make their way to the ocean.Gunton M (producer) (2009). ''Life''. United Kingdom: BBC.

Description

Habitat

Reproduction

References

Further reading