All Monsters (7)

• Carrion Crawler - 9' long, 3' high, many-legged, segmented worms with a ring of 2' long tentacles around their mouths
  OSE
• Gelatinous Cube - Nearly transparent cube that travels dungeon corridors absorbing carrion, creatures, and trash
  BFRPG, OSE, OSRIC
• Green Slime - Dripping, green slime that clings to walls and ceilings
  OSE, OSRIC
• Jelly, Glass - Huge transparent jelly that absorbs carrion and creatures, trapping inorganic material visibly inside its body
  BFRPG
• Slithering Tracker - Transparent, amorphous predator that stalks prey in darkness
  OSRIC
• Weasel, Giant (or Ferret, Giant) - Long-bodied predatory animals with short legs and pointed, toothy snouts
  BFRPG, OSRIC
• Weasel, Huge - Large blood-draining weasels found in forests and dungeons
  OSRIC