Related Clues:

• Snaky type of omens from Roman Letters
• Freshwater reptile bringing one salmon up in ten
• Animal quietly burrowing into ground
• Poisonous snake in the grass
• Type of turtle
• Noisy, dangerous snake
• Snake and rodent let out by river
• Noisy snake!
• Reptile burying head of prey in the earth
• Pond primarily put in ground for freshwater animal
• One letting you know before going for a bite?
• North American pit viper
• Reptile named for the warning sound it makes
• Animal used to kill vermin catches large snake
• Shot at close distance, stray being caught -- animal kept as pet?