A rattlesnake.
It is mostly the rattlesnake.
The 3-letter poisonous snake is almost always "asp."
a snake
rattle snake
Rattle snake
corbra
western rattle snake
snake, ivy and mushrooms
asp
Most poisonous snake have fang.
If the snake is poisonous then it is probably a good name. I would recommend the name Jeff lol but that's not very good.