Wiktionary
pancake tortoise
n. A species of flat-shelled tortoise, taxonomic name (taxlink Malacochersus tornieri species noshow=1).
Wikipedia
Pancake tortoise
The pancake tortoise (Malacochersus tornieri) is a flat-shelled tortoise native to Tanzania and Kenya. Its name is derived from the flat shape of its shell. It is the only member of the genus Malacochersus.