limbless scaly elongate reptile; some are venomous

Old World vipers

small terrestrial viper common in northern Eurasia

of southern Europe; similar to but smaller than the adder

large African viper that inflates its body when alarmed

large heavy-bodied brilliantly marked and extremely venomous west African viper

highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye

Old World vipers