The Great Basin Spadefoot is a small, rather rotund amphibian, grey or olive green in colour. The eyes are very large, golden yellow, and set on the sides of the head; the pupils are vertical. The tympana (”ears”) are small
and inconspicuous. They have a bump between the eyes, giving the head a distinctive shape. Adult spadefoots are 4 to 6.5 centimetres long; males are
smaller than females. The limbs are relatively short and stubby and the body rather plump; a Spadefoot sitting still on the ground can give a very convincing impression of a large pebble.
Ministry of Environment, Lands and Parks. 2001. Great Basin Spadefoot (frogwatch factsheet). Ministry of Environment, Lands and Parks. Frogwatch factsheet. 6