Andaman Keelback : Xenochrophis tytleri

Snakes of World

The Andaman Keelback, also known as Xenochrophis tytleri, is a non-venomous species of snake. It does not produce any venom and is not considered to be dangerous to humans. The Andaman Keelback is a medium-sized species of snake, with an average length of around 60-70 cm (24-28 inches). It has a slender, cylindrical body shape and a pointed head. The eyes are large and round, with round pupils.


The scales of the Andaman Keelback are smooth and shiny. The dorsal scales are arranged in 15 rows, and there are 149-166 ventral scales and 54-72 subcaudal scales. The anal scale is divided, and there are 8 supralabials and 10-11 infralabials.

The Andaman Keelback, Xenochrophis tytleri, has the following scalation:

  • Dorsal scales: 19 rows at mid-body, keeled
  • Ventral scales: Smooth and undivided
  • Anal scale: Single
  • Subcaudal scales: Divided

The scales of Xenochrophis tytleri are keeled, which gives them a distinct texture.


The Andaman Keelback has a distinctive appearance, with a dark brown or olive color on its back and sides, with a series of lighter crossbars or spots. The belly is yellow or cream-colored. The scales are smooth and shiny, giving the snake a sleek appearance.

Natural History:

The Andaman Keelback is primarily active during the day and feeds on small prey such as fish, frogs, and small rodents. It is known for its aquatic nature and is often found in or near water sources.


The Andaman Keelback is found only on the Andaman Islands, which are a group of islands in the Bay of Bengal belonging to India. It is most commonly found near water sources, such as ponds, streams, and marshes.


The Andaman Keelback is a relatively docile species of snake and is not aggressive towards humans. It will usually try to escape when confronted but may become defensive and try to bite if it feels threatened. This species is often seen swimming in water sources or basking in the sun on rocks or logs.


Little is known about the reproductive biology of the Andaman Keelback, but it is believed to be oviparous, laying eggs rather than giving birth to live young.

Location and Conservation:

The Andaman Keelback is found only on the Andaman Islands, which are a group of islands in the Bay of Bengal belonging to India. Due to the limited range of the species, it is considered to be vulnerable to habitat loss and other threats. It is listed as a species of least concern by the International Union for Conservation of Nature (IUCN). The Andaman Keelback is a unique and interesting species found only on the Andaman Islands in the Bay of Bengal. Its distinctive appearance and behavior make it a fascinating creature to study, and its non-venomous nature makes it a valuable part of the local ecosystem. The protection of its habitat is crucial for the conservation of this species and the maintenance of biodiversity in the region.

Author: user

Leave a Reply