 The snake 's common names include Gaboon viper , butterfly adder , forest puff adder , whisper , swampjack , Gaboon adder , . 
 The snake <a href='null_genetive' title='1'><mark>'s</mark></a>common names include Gaboon viper , butterfly adder , forest puff adder , whisper , swampjack , Gaboon adder , . 
Da snake  common names include Gaboon viper , butterfly adder , forest puff adder , whisper , swampjack , Gaboon adder , .