Echis carinatus, commonly known as the saw-scaled viper, is a small, highly venomous snake found in arid regions of India and the Middle East. It has a distinctive keeled scale pattern, which creates a rasping sound when rubbed together. The viper is nocturnal and prefers rocky, sandy habitats.

Echis carinatus, commonly known as the saw-scaled viper, is native to the Indian subcontinent and parts of the Middle East. It is found in countries including India, Pakistan, Sri Lanka, Bangladesh, and extends into parts of the Middle East such as Iran, Iraq, and parts of the Arabian Peninsula.

This species typically inhabits arid and semi-arid regions. It is commonly found in dry, rocky, and sandy environments, often with sparse vegetation. The climate in these regions can be extreme, with high temperatures and low humidity, especially during the day.

Echis carinatus plays a role as both predator and prey within its ecosystem. It primarily preys on small mammals, birds, lizards, and occasionally amphibians. This snake is well-adapted to its environment, exhibiting nocturnal behavior to avoid daytime heat and using its camouflaged coloration to blend into the rocky and sandy substrate.