Rattlesnake
From MUME
Rattlesnakes are aggressive level ~14 mobiles found in various places around Arda. They have a venomous bite. Rattlesnake venom drains HP and can be quite dangerous to a player if they don't have a way to remove poison. Their corpses can be butchered to produce a venom sac or snakeskin.
A diamond-back rattlesnake is coiled here, ready to strike. >examine snake This long tan snake seems annoyed at your presence, and it lets you know by shaking its tail hundreds of times a minute. The sound it produces is enough to strike fear into the most seasoned fighter. The black diamond pattern along its back make the viper look sinister and dangerous. The most noticeable thing about it though, are the twin fangs protruding out of its mouth. Sharp and glistening with poison, they would not feel good in your leg.