coral snake
how do you say '20 minute snake' in spanish, in reference to the coral snake?
3 Answers
Víbora de coral.

I've never ever heard of 20 minute snakes, but , then I live in England and we have nothing worse than the odd adder and most people here will never see a snake in their life.
This link gives the name serpiente de coral or rabo de aji.
Not sure if our English phrase, 20 minute snake, which I assume is a snake whose venom can kill in 20 minutes if untreated, will translate into Spanish. Maybe, serpeiente de veinte minutos?
What about 'el serpiente matador de veinte minutos'?