Ratmen

Ratmen, a cross between human and rat. They are a plague in the catacombs of Moonshade. Not very strong in combat, they are carriers of numerous diseases and have a poisonous bite. However, with the right magical instrument, they can be put to sleep easily.

They are found in masses in the catacombs under Moonshade.

Lore
''These half-men, half-rats are the scourge of Moonshade. They infest the catacombs beneath that city, preventing access to the underground. There are far too many for us to overcome, but some day the time will arrive to purge the catacombs.''

- from "Beyond the Serpent Pillars", Ultima VII/2