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Deadly Coral Sea Snake; banded sea krait,Laticauda colubrina, Anilao; Batangas; Philippines; There are 62 sea snake species and they range significantly in disposition and aggressiveness. Some will only bite if they are being provoked when other species will bite quite readily. Banded sea snake is normally docile to human but its venom is highly dangerous. The scientific name for the black and white sea snake is Laticauda colubrine. It has several common names including colubrine sea krait, banded sea krait and yellow lipped sea krait.  Laticauda colubrine is the sole member of sea snake that give birth its young by laying eggs. They spend most of the time on the land after laying their eggs. Hence, it has a cylindrical body shape with ventral scales just like the land snake. The ventral scales help the snake to climb the tree easily. However, the Laticauda colubrine is also well adapted to the water. Like the hydropiids, the Laticauda colubrine has a compressed tail which allows it to propel forward in the water and move speedily. They have strong lungs which allow them to hold their breath underwater for extended period. However, they must come up to the surface of the water to breath in oxygen. On average, the Laticauda colubrine must surface the water from 7 – 8 hours underwater. The valvular nostrils and glands in the tongue prevent the saltwater from entering the lung.They are truly marine snake. However, they will come to the land during the breeding season. They live in swampy areas near mangroves, coral reefs and islands. They are often spotted in 1 – 10 m of the water. They sleep during the day and catch the prey at night. Sometimes, they are found foraging in the coral reef in the day time.  The existence of the banded sea snake is evolved from several land species of snakes including the family Elapids. One of the dangerous species in the family Elapids is the Cobra snake. The neurotoxic venom of the banded sea snake can has an impact on the nervous