Number of the records: 1
Viperinae
Subject h. Viperinae Subject h. Viperinae Entry terms vretenice pravé
vreteniceScope note in English A subfamily of snakes commonly known as true vipers or crotaline snakes in the family VIPERIDAE. They are distinguished from sister subfamily CROTALINAE or pit vipers by their lack the heat-sensing pit organs. 
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Number of the records: 1