Dwarf Sand Boa

The dwarf sand boa is a short, thick-bodied snake with a blunt head scarcely wider than the neck and a very short, rounded tail. Small eyes sit high on the head, an arrangement suited to watching while buried. Its sandy, yellow-brown or grey back bears dark blotches, and the belly is pale or mottled. The compact build, smooth-looking outline and blunt tail separate it from Mongolia's long, slender racers. (Wikipedia, Eryx miliaris account)

This boa inhabits loose sand and dry semi-desert across Central Asia. It burrows beneath the surface, often leaving only the eyes exposed, and becomes active especially around dusk or during suitable temperatures. Small rodents and lizards are seized and subdued by constriction. Unlike most Mongolian snakes, females give birth to live young. The opened account did not support a named Mongolian locality, exact local activity period or population-specific litter size, so those points are omitted. (Wikipedia, Eryx miliaris account)