The blue-lipped sea krait (''Laticauda laticaudata''), also known as the blue-banded sea krait or common sea krait, is a species of

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 Elapidae, elapid snakes that inhabit Marine (ocean), marine environments for most or all of their lives. They belong to two subfamilies, Hydrophiinae and Sea krait, Laticaudinae. Hydrophiinae also includes ...

in the

subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end botanical subfamily names with "-oideae", and zo ...

Laticaudinae of the family

Elapidae Elapidae (, commonly known as elapids , from , variant of "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 '' Emydocephalus ...

. It is found in the Indian and Western Pacific Oceans.

Taxonomy

The blue-lipped sea krait was one of the many species originally described by

Carl Linnaeus Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...

in his landmark 1758

10th edition 1 (one, unit, unity) is a number, numeral, and glyph. It is the first and smallest positive integer of the infinite sequence of natural numbers. This fundamental property has led to its unique uses in other fields, ranging from science to sp ...

of ''

Systema Naturae ' (originally in Latin written ' with the Orthographic ligature, ligature æ) is one of the major works of the Sweden, Swedish botanist, zoologist and physician Carl Linnaeus (1707–1778) and introduced the Linnaean taxonomy. Although the syste ...

'', where it was given the binomial name ''Coluber laticaudatus''. There are two

subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...

, ''Laticauda laticaudata laticaudata'' and ''Laticauda laticaudata affinis''.

Description

Ventral scales of this snake are large, one-third to more than one-half the width of the body; the nostrils are lateral; nasal scales are separated by internasals; 19 longitudinal rows of imbricate scales are found at midbody; no azygous prefrontal shield is present; rostral scales are undivided; ventrals number 225–243; subcaudals number 38–47 in males, females have 30–35 (ventral and subcaudal counts after Smith 1943:443). The upper lip is dark brown. Total length varies with sex: males are , females are ; tail lengths are similar: . The 19 rows of scales and the dark brown upper lip can be used to differentiate the blue-lipped sea krait from other ''Laticauda'' species.

Distribution and habitat

This species is found in the Indian and Western Pacific Oceans: Bay of Bengal (

Bangladesh Bangladesh, officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world and among the List of countries and dependencies by ...

, East

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Andaman Andaman may refer to: * Andaman Islands, an island group in the Bay of Bengal * Andaman Island, Penang, an artificial island in George Town, Penang * Andaman Sea, a sea of the eastern Indian Ocean * ''Andaman'' (1998 film), an Indian Kannada-lang ...

& Nicobar Islands,

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Myanmar Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and has ...

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), coasts of

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New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; , fossilized , also known as Papua or historically ) is the List of islands by area, world's second-largest island, with an area of . Located in Melanesia in the southwestern Pacific Ocean, the island is ...

, the

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, off the coasts of

Fujian Fujian is a provinces of China, province in East China, southeastern China. Fujian is bordered by Zhejiang to the north, Jiangxi to the west, Guangdong to the south, and the Taiwan Strait to the east. Its capital is Fuzhou and its largest prefe ...

and

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocea ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

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Solomon Islands Solomon Islands, also known simply as the Solomons,John Prados, ''Islands of Destiny'', Dutton Caliber, 2012, p,20 and passim is an island country consisting of six major islands and over 1000 smaller islands in Melanesia, part of Oceania, t ...

New Caledonia New Caledonia ( ; ) is a group of islands in the southwest Pacific Ocean, southwest of Vanuatu and east of Australia. Located from Metropolitan France, it forms a Overseas France#Sui generis collectivity, ''sui generis'' collectivity of t ...

Palau Palau, officially the Republic of Palau, is an island country in the Micronesia subregion of Oceania in the western Pacific Ocean. The Republic of Palau consists of approximately 340 islands and is the western part of the Caroline Islands ...

Vanuatu Vanuatu ( or ; ), officially the Republic of Vanuatu (; ), is an island country in Melanesia located in the South Pacific Ocean. The archipelago, which is of volcanic origin, is east of northern Australia, northeast of New Caledonia, east o ...

Fiji Fiji, officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists of an archipelago of more than 330 islands—of which about ...

, and

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

(Queensland). One specimen was found in Devonport,

New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...

in 2011 and again in January 2025, however it died shortly after being taken to

Kelly Tarlton's Sea Life Aquarium Kelly Tarlton's Sea Life Aquarium (formerly Kelly Tarlton's Underwater World) is a public aquarium opened in 1985 in Auckland, New Zealand. Located at 23 Tamaki Drive, it was the brainchild of New Zealand marine archaeologist and diver Kelly T ...

. The blue-lipped sea snake is spread all over the west pacific, making it known as the common sea krait. Sea kraits forage in reefs and return to land to digest their prey, mate, slough, and lay their eggs. Sea krait experience rapid temperature shifts when going from water to land. They'll often mitigate these effects by seeking shelter from direct sunlight.

Special features

This snake is known to warm up in

wedge-tailed shearwater The wedge-tailed shearwater (''Ardenna pacifica'') is a medium-large shearwater in the seabird family Procellariidae. It is one of the shearwater species that is sometimes referred to as a muttonbird, like the sooty shearwater of New Zealand and ...

burrows.

References

* Kharin V. E. 1984 Revision of sea snakes of subfamily Laticaudinae Cope, 1879 sensu lato (Serpentes, Hydrophiidae). Trudy Zoologicheskogo Instituta 124: 128-139

External links

* . * {{Taxonbar , from=Q1907959 Laticauda Reptiles of the Indian Ocean Fauna of the Pacific Ocean Snakes of Asia Snakes of Australia Reptiles of Bangladesh Reptiles of Cambodia Snakes of China Reptiles of India Reptiles of Indonesia Snakes of Japan Reptiles of Malaysia Reptiles of Myanmar Reptiles of Papua New Guinea Reptiles of the Philippines Reptiles of Sri Lanka Reptiles of Taiwan Reptiles of Thailand Snakes of Vietnam Reptiles described in 1758 Taxa named by Carl Linnaeus Snakes of New Guinea