The File Snake is one of three primitive species of snake known as xenophidian that are from the family Acrochordidae. They are found in Australia and Indonesia. They are becoming a rare species as their hides are used for leather products.
File Snakes range in length from 2 to 8 feet. They are entirely aquatic, lacking the broad belly-scales found in most other species of snakes. Their skin is loose and baggy, giving the impression of being several sizes too large for the snake. The scales are tiny pyramid-like projections.
These snakes lurk at the bottom of rivers, streams, and estuaries and wait for fish to approach which they catch by slamming their coils together. The rough scales allow them to hold the fis, even through the snake’s mucus coating.