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Type: aberration
CR
Source
Climate
Movement: Swim
23 creatures
| Name ▲ | CR | Alignment | Size | Description |
|---|---|---|---|---|
| Aboleth | 7 | LE | Huge | |
| Charybdis | 13 | CN | Gargantuan | An immense spiny monster, its back plated in chitin and its belly in thick folds of blubber,... |
| Chuul | 7 | CE | Large | |
| Cthulhu | 30 | CE | Colossal | |
| Cuero | 5 | N | Large | The pink, fleshy underside of this flat, aquatic creature features a large circular maw of fangs. |
| Drakainia | 25 | NE | Huge | This woman’s upper body is shapely and beautiful, but her lower body is bloated, with pulsating... |
| Elder Thing | 5 | LN | Medium | This strange being has a star-shaped head and numerous writhing appendages arranged radially... |
| Froghemoth | 13 | N | Huge | |
| Gibbering Mouther | 5 | N | Medium | |
| Goblin Snake | 1 | CE | Small | A gray, lipless goblin head with serpent’s fangs sits atop the sinuous black body of this... |
| Grindylow | 1/2 | CE | Small | With a large head and numerous teeth, this unsightly creature resembles a goblin from the waist... |
| Heikegani | 4 | NE | Small | The carapace of this large crab resembles a scowling face, its eyes seething with an ancient fury. |
| Iku-Turso | 8 | NE | Medium | This grotesque, emerald-scaled creature resembles a crossbreed of an eel, a viperfish, and a... |
| Incutilis | 2 | LE | Tiny | This strange nautilus drags itself forward on oversized tentacles, its crimson-streaked flesh... |
| Lorelei | 12 | NE | Large | This strange creature appears to be a gigantic human head carved from stone, with thick... |
| Plankta | 17 | NE | Colossal | The shattered remnants of buildings and statues can be seen in this shuddering mass of wet, rugged rock. |
| Reefclaw | 1 | CN | Small | Blood-red spines run the length of this frightening creature, which resembles a lobster in the... |
| Scylla | 16 | CE | Huge | This horrifying creature has the upper body of a beautiful woman, but a lower body of snapping... |
| Siyokoy | 10 | N | Medium | This eel-like creature sports sharp frills that run along the back of humanoid torso and down... |
| Spirit Naga | 9 | CE | Large | |
| Star-Spawn of Cthulhu | 20 | CE | Huge | A mountainous form, this hideous creature is humanoid in general shape, but its hateful face is... |
| Water Naga | 7 | N | Large | Slender spines and brightly colored frills stretch back from the human-like face of this massive... |
| Wizard’s Shackle | 1/2 | N | Tiny | This eel-like creature has a thick, greasy body and a large, circular mouth full of tiny teeth. |