The Indian subcontinent is home to about 230 species of snakes. Of these, the venomous snakes are about 20 odd species of sea snakes (found only in the sea and sometimes stranded between tides) and around 15 species of land snakes. The smallest snake is 4 inches in length (worm snakes), and the Reticulated Python of India may reach up to 29 feet (9 meters) in length. The longest venomous snake in the world is the king cobra, which reaches up to 18 feet in length. In Rajasthan it houses approximately 28 species of serpents and two species of monitor lizards.