👉 Thaumamermis is a fictional character from the science fiction novel "The Hitchhiker's Guide to the Galaxy" by Douglas Adams, first published in 1973. The main character, Dr. John Haddock, encounters this mysterious alien being named Thaumamermis, who claims to possess knowledge of all things and is seen as a threat to humanity. Thaumamermis has a long, curved tail that resembles a human tail, and it