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Microcephalophis gracilis, also known as the graceful small-headed seasnake, slender sea snake, narrow-headed sea snake, common small-headed sea snake, is a species of sea snake found in the Indian and Pacific Oceans. [1] [2] [3] It is venomous. [2] [3]
The dwarf sea snake is bluish or grayish blue dorsally, merging to yellowish ventrally, with 35–58 deep bluish-black crossbands. The crossbands are as wide or wider than the interspaces, well defined in younger specimens, but obscure in older specimens. The head is black, and in juveniles may also have a yellowish horseshoe-shaped mark.
In general, sea snakes are able to respire through their skin. Experiments with the yellow-bellied sea snake, Hydrophis platurus, have shown that this species can satisfy about 20% of its oxygen requirements in this manner, allowing for prolonged dives. The sea kraits (Laticauda spp.) are the sea snakes least adapted to aquatic life. Their ...
Aipysurus eydouxii (Spine-tailed sea snake) Aipysurus laevis (Olive sea snake) Astrotia stokesii (Stoke's sea snake) Disteira; Disteira major (Olive-headed or greater sea snake) Disteira nigrocincta Disteira walli (Wall's sea snake) Enhydrina schistosa (Beaked sea snake, hook-nosed sea snake, common sea snake, Valakadyn sea snake)
The small-headed sea snake (Hydrophis macdowelli) is a sea snake in the family Elapidae native to waters off northern Australia. It is a unique species in having a small head in relation to its body size. It grows up to a length of 1 metre. [2]
See snake scales for terms used. M.A. Smith (1943) describes the species as follows: [4] Head short, snout declivous and much narrowed anteriorly; eye moderate; rostral as high as broad; prefrontals small, usually not in contact with the supralabials; frontal much longer than broad, nearly as long as its distance from the end of the snout: 1 pre- and 1 postocular; 6 supralabials, the last ...
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Gene-encoded AMPs represent the main component of an innate immune system that protects snakes from microbial infections. Sea snakes inhabit an ecological niche that differs from that of terrestrial snakes, and encounter distinct pathogens. The innate immune system of sea snakes apparently enables them to resist both terrestrial and marine ...