You can't, you have to trade with Sapphire or Emerald. At least you get Zangoose! :D
you can't catch seviper on Pokemon ruby (Pokemon sapphire only)
You can get seviper from Pokemon sapphire by trading.
seviper can't be found anywhere
You can catch Seviper in Ruby, Sapphire, Emerald, HeartGold (IV), SoulSilver (IV), Black and White.
you don't find seviper in ruby, it is also zangoose's enemy.
Seviper can be found in Route 114, which is south-west of Fallarbor Town. It is not accessible in Poke'mon Ruby, by the way.
no Pokemon evolves into seviper
To get Seviper, you have to have Pokemon Sapphire or Emerald (Zangoose is in Ruby) and you get it on Route 114 near Lanette's house.
Seviper is a Poison type pokemon.
You must trade one over from Pokemon Sapphire or Emerald. It is spelled Seviper, by the way.
Seviper does not evolve.
if you have ruby its on route 115 its where you find a seviper or how ever its spelled. if you have ruby its on route 115 its where you find a seviper or how ever its spelled.