The Spawn of Hastur are a fictional race created in Chaosium in 1995 for the Call of Cthulhu RPG.
The Spawn of Hastur are octopoidal creatures with hideous faces. It's an amphibious race with a limited ability to fly. They are seen with Hastur in the lake of Hali. Victims are crushed by their tentacles and/or drawn to their bodies, and swallowed whole. It's a race knowledgeable in magic.