Oval: 38,61 х 28,81 mm Phrynocephalus mystaceus is a species of agamid lizard found in Iran, North Afghanistan, Eastern Caucasus, Kazakhstan and possibly in south of Astrakhan Oblast. Could reach up to 24 centimetres in length.
Obverse:
Obverse: face value“500 ТЕҢГЕ” in the center, under the face value metal, fineness and weight of the coin “Ag 925 24 g”, year of coinage “2010”, trade mark of Kazakhstan mint. The name of issuing bank in Kazakh “ҚАЗАҚСТАН ҰЛТТЫҚ БАНКІ” on the upper sector on the circumference. Stylizes image of a butterfly and composition of flowers on the lower sector.
Reverse:
Reverse: images of two Phrynocephalus Mystaseus on barchan sands, one image is gilded. The name of the coin and name of the species in Kazakh “ҚҰЛАҚТЫ ЖҰМЫРБАС КЕСІРТКЕ” and Latin “PHRYNOCEPHALUS MYSTASEUS” on the edge of the oval.