Snakefish

Snakefish was a monolithic snake or eel of some sort who lived in the Toadlands. He had a ravenous appitite for Toadflesh, which caused him to come to the Toadlands. Eventually however, Snakefish was captured when he fell into a trap, and was thrown into the Screamhole. Then, when Martin the Warrior, Young Dinny and Gonff the Mousethief were captured and tossed into the Screamhole, he escaped with their help and was not mentioned thereafter.