Biology
(
Anglèis
)
fornì da Arkive
Marine snakes in general exhibit a range of adaptations to their aquatic environment, of which the ability to stay submerged for long periods of time is particularly remarkable. They are able to avoid frequent trips to the surface to breathe because not only do they have a long, cylindrical lung that runs almost the length of their body, but they are also able to diffuse oxygen from the water through their skin (4). Although in sea kraits this form of respiration is less efficient than in other marine snakes (3), the Rennell Island sea krait frequently remains submerged for more than eight minutes (5). It forages in fairly shallow waters from a depth of only a few centimetres down to a recorded 13 metres. With frequent tongue flicking, it investigates crevices and holes, and the edges of submerged logs and branches for small fish, such as the native goby Eleotris fusca. Like many other marine snakes, this species has a potent venom, which it secretes from hollow fangs at the front of its mouth, and uses to immobilise prey before swallowing (3) (5).
While sea kraits are the only group of marine snake considered to be oviparous, that is, laying eggs instead of giving birth to live offspring, the mode of reproduction has never been reliably recorded in the Rennell Island sea krait (3) (5). Furthermore, local people maintain that in contrast with other Laticauda species, the Rennell Island sea krait does actually give birth to live young (5). Although the other sea krait species are all amphibious, an essential trait for oviparous snakes that must come ashore to lay their eggs (4), during the only field study conducted on this species it was never seen on land (5).
Conservation
(
Anglèis
)
fornì da Arkive
Currently, there are no known conservation measures in place for this species. However, East Rennell which includes Lake Te-Nggano, is classified as a World Heritage Site because of its exceptionally diverse and unique fauna and flora. Consequently, the area is managed according to a management plan recommended by UNESCO (United Nations Educational, Scientific and Cultural Organisation) which should ensure its long-term preservation (6).
Description
(
Anglèis
)
fornì da Arkive
The genus Laticauda (sea kraits) comprises seven species typically recognised by their strong colour banding and amphibious lifestyles (1) (3) (4). While six of the seven species fit this description, the Rennell Island sea krait is intriguingly different. Instead of having the conspicuous pattern of light and dark bands, this species is uniformly dark brown in colouration and only exhibits relatively faint banding. It is also considered a dwarf species, because of its relatively small size compared with the other Laticauda species (5). In common with the body shape of other sea kraits, and indeed most other marine snakes, it has a paddle shaped tail with which it propels itself through the water (3) (4).
Habitat
(
Anglèis
)
fornì da Arkive
The lake in which this species is found is narrowly separated from the sea and has a salt content about one third that of salt water. It mostly inhabits shallow parts of the lake, which lies within a limestone (raised coral reef) basin (1) (5).
Range
(
Anglèis
)
fornì da Arkive
Despite its partly misleading name, rather than occurring in the sea, the Rennell Island sea krait is restricted to a lake (Lake Te-Nggano) on Rennell Island in the Solomon Islands (2) (5).
Status
(
Anglèis
)
fornì da Arkive
Classified as Vulnerable (VU) on the IUCN Red List (2).
Threats
(
Anglèis
)
fornì da Arkive
The Rennell Island sea krait is the only species of marine snake currently listed on the IUCN Red List. Despite the absence of any significant direct threats, it is classified as Vulnerable because it has a very small and restricted range (2).
Distribution
(
Anglèis
)
fornì da ReptileDB
Continent: Oceania
Distribution: Solomon Islands (Rennell)
Type locality: Lake Te-Nggano on Rennell Island
Common Names
(
Anglèis
)
fornì da Snake Species of the World LifeDesk
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- Mohammadi, Shabnam
Distribution
(
Anglèis
)
fornì da Snake Species of the World LifeDesk
Solomon Islands (Lake Te-Nggano, Rennell Island).
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- Mohammadi, Shabnam
Notes
(
Anglèis
)
fornì da Snake Species of the World LifeDesk
Holotype: CAS 72001, according to original description.
Type-locality: Lake Tungano [Te-Nggano], Rennell Island, Solomon Islands
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- cc-by-nc
- drit d'autor
- Mohammadi, Shabnam
Crocker's sea snake
(
Anglèis
)
fornì da wikipedia EN
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Crocker's sea snake: Brief Summary
(
Anglèis
)
fornì da wikipedia EN
Crocker's sea snake (Laticauda crockeri) is a species of venomous snake in the subfamily Hydrophiinae of the family Elapidae. The species is native to Oceania.
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Laticauda crockeri
(
Spagneul; Castilian
)
fornì da wikipedia ES
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Laticauda crockeri: Brief Summary
(
Spagneul; Castilian
)
fornì da wikipedia ES
Laticauda crockeri es una especie de serpientes de la familia Elapidae.
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Laticauda crockeri
(
Basch
)
fornì da wikipedia EU
(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
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- Wikipediako egileak eta editoreak
Laticauda crockeri: Brief Summary
(
Basch
)
fornì da wikipedia EU
Laticauda crockeri Laticauda generoko animalia da. Narrastien barruko Hydrophiidae familian sailkatuta dago.
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Laticauda crockeri
(
Fransèis
)
fornì da wikipedia FR
Laticauda crockeri ou tricot rayé des Salomon est une espèce de serpents de la famille des Elapidae[1].
Répartition
Cette espèce est endémique du lac Te-Nggano, un lac d'eau saumâtre et aussi le plus grand lagon surélevé au monde (superficie de 155 km2), sur l'île Rennell dans l'archipel des Salomon[1].
Description
L'holotype de Laticauda crockeri[2] mesure 479 mm dont 64 mm pour la queue. Les plus grands individus[1] mesurent 615 mm pour les mâles et 795 mm pour les femelles. Cette espèce[2] très mal connue présente un corps uniformément brun sombre ou porte de 27 à 47 anneaux plus sombre, avec une tache jaune au niveau de l'anus. On ne l'a jamais vu à terre : ce serpent mène peut-être une vie entièrement aquatique. Il chasse jusqu'à une profondeur de 13 m maximum des petits gobies Eleotris fusca et cohabite avec des tricots rayés communs[3].
Il s'agit de l'une des deux espèces de serpents dits marins à vivre en eau douce (plus exactement saumâtre), l'autre espèce étant Leioselasma semperi. C'est un serpent ovipare[1].
Étymologie
Cette espèce est nommée en l'honneur de Templeton Crocker[2].
Publication originale
- Slevin, 1934 : The Templeton Crocker Expedition to Western Polynesian and Melanesian Islands, 1933. No. 15. Notes on the reptiles and amphibians, with the description of a new species of sea-snake. Proceedings of the California Academy of Sciences, vol. 21, no 15, p. 183-188 (texte intégral).
Notes et références
-
↑ a b c et d Reptarium Reptile Database, consulté lors d'une mise à jour du lien externe
-
↑ a b et c Slevin, 1934 : The Templeton Crocker Expedition to Western Polynesian and Melanesian Islands, 1933. No. 15. Notes on the reptiles and amphibians, with the description of a new species of sea-snake. Proceedings of the California Academy of Sciences, vol. 21, no 15, p. 183-188 (texte intégral).
-
↑ Alain Diringer (préf. Marc Taquet), Mammifères marins et reptiles marins de l'océan Indien et du Pacifique, Éditions Orphie, 2020, 272 p. (ISBN 979-10-298-0254-6), Tricot rayé des Salomon page 190
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Laticauda crockeri: Brief Summary
(
Fransèis
)
fornì da wikipedia FR
Laticauda crockeri ou tricot rayé des Salomon est une espèce de serpents de la famille des Elapidae.
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Laticauda crockeri
(
Latin
)
fornì da wikipedia LA
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Laticauda crockeri: Brief Summary
(
Latin
)
fornì da wikipedia LA
Laticauda crockeri est species serpentis familiae Elapidarum, in Lacu Tenago, in singulo aquae amarae corpore Insulae Rennell in Insulis Salomonis endemica.
Nunc habetur vulnerabilis ab IUCN ob distributionem geographicam angustissimam.
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Laticauda crockeri
(
vietnamèis
)
fornì da wikipedia VI
Laticauda crockeri là một loài rắn trong họ Rắn hổ. Loài này được Slevin mô tả khoa học đầu tiên năm 1934.[1]
Hình ảnh
Chú thích
Tham khảo
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Laticauda crockeri: Brief Summary
(
vietnamèis
)
fornì da wikipedia VI
Laticauda crockeri là một loài rắn trong họ Rắn hổ. Loài này được Slevin mô tả khoa học đầu tiên năm 1934.
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クロッカーウミヘビ
(
Giaponèis
)
fornì da wikipedia 日本語
クロッカーウミヘビ: Brief Summary
(
Giaponèis
)
fornì da wikipedia 日本語
クロッカーウミヘビ（学名：Laticauda crockeri）は、コブラ科エラブウミヘビ属に分類されるヘビ。
Haec stipula ad reptile spectat. Amplifica, si potes! .png)
分類 界 : 動物界 Animalia 門 : 脊索動物門 Chordata 亜門 : 脊椎動物亜門 Vertebrata 綱 : 爬虫綱 Reptilia 目 : 有鱗目 Squamata 亜目 : ヘビ亜目 Serpentes 科 : コブラ科 Elapidae 亜科 : ウミヘビ亜科 Hydrophiinae 属 : エラブウミヘビ属 Laticauda 種 : クロッカーウミヘビ L. crockeri 学名 Laticauda crockeri Slevin, 1934 和名 クロッカーウミヘビ 英名 Crocker's sea krait .png)
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