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List of Illustrations
The grass snake Natrix natrix
14 other sections not shown
absent According adder adult altitudes Anguis fragilis appears areas Asia aspic viper Austria Balkan basking belly bite body borders Bulgaria captivity carapace centimetres central Europe Chalcides coiled colouration Coluber viridiflavus colubrids common lizard devoured dice snake dorsal eastern eggs European extends female flecks France frequently Fretey grass snake green lizard habitat Hatching head hibernation Hungary inhabits islands Italy jaws keeled known Lacerta agilis lacertids large numbers length lizard Lacerta longitudinal rows mainly male mating melanism Mertens metres millimetres Natrix natrix normally northern and central occasionally occurs pair peninsula plates Podarcis muralis pond tortoise prey range rarely region reptiles retreat Romania Rostral sand lizard Scalation scales skin skink slow worm smooth snake sometimes south-western southern specimens spots stripe tail Terra typica upper labials usually venom Vipera aspis Vipera berus Vipera berus bosniensis Vipera ursinii viperine snake wall lizard western whitish yellow yellowish young Yugoslavia