# Monsters by Habitat; Underwater Monsters *Source: Monster Manual (2024) p. 375* **Underwater Monsters** | CR | Monsters | |----|----------| | 0 | [Crab](Mechanics/CLI/bestiary/beast/crab-xmm.md), [Octopus](Mechanics/CLI/bestiary/beast/octopus-xmm.md), [Piranha](Mechanics/CLI/bestiary/beast/piranha-xmm.md), [Seahorse](Mechanics/CLI/bestiary/beast/seahorse-xmm.md) | | 1/8 | [Giant Crab](Mechanics/CLI/bestiary/beast/giant-crab-xmm.md), [Merfolk Skirmisher](Mechanics/CLI/bestiary/elemental/merfolk-skirmisher-xmm.md) | | 1/4 | [Constrictor Snake](Mechanics/CLI/bestiary/beast/constrictor-snake-xmm.md) | | 1/2 | [Giant Seahorse](Mechanics/CLI/bestiary/beast/giant-seahorse-xmm.md), [Reef Shark](Mechanics/CLI/bestiary/beast/reef-shark-xmm.md), [Sahuagin Warrior](Mechanics/CLI/bestiary/fiend/sahuagin-warrior-xmm.md) | | 1 | [Giant Octopus](Mechanics/CLI/bestiary/beast/giant-octopus-xmm.md), [Swarm of Piranhas](Mechanics/CLI/bestiary/beast/swarm-of-piranhas-xmm.md) | | 2 | [Giant Constrictor Snake](Mechanics/CLI/bestiary/beast/giant-constrictor-snake-xmm.md), [Hunter Shark](Mechanics/CLI/bestiary/beast/hunter-shark-xmm.md), [Merrow](Mechanics/CLI/bestiary/monstrosity/merrow-xmm.md), [Plesiosaurus](Mechanics/CLI/bestiary/beast/plesiosaurus-xmm.md), [Sahuagin Priest](Mechanics/CLI/bestiary/fiend/sahuagin-priest-xmm.md), [Sea Hag](Mechanics/CLI/bestiary/fey/sea-hag-xmm.md) | | 3 | [Killer Whale](Mechanics/CLI/bestiary/beast/killer-whale-xmm.md) | | 4 | [Archelon](Mechanics/CLI/bestiary/beast/archelon-xmm.md) | | 5 | [Giant Shark](Mechanics/CLI/bestiary/beast/giant-shark-xmm.md), [Sahuagin Baron](Mechanics/CLI/bestiary/fiend/sahuagin-baron-xmm.md), [Water Elemental](Mechanics/CLI/bestiary/elemental/water-elemental-xmm.md) | | 6 | [Giant Squid](Mechanics/CLI/bestiary/beast/giant-squid-xmm.md), [Merfolk Wavebender](Mechanics/CLI/bestiary/elemental/merfolk-wavebender-xmm.md) | | 10 | [Aboleth](Mechanics/CLI/bestiary/aberration/aboleth-xmm.md) | | 11 | [Marid](Mechanics/CLI/bestiary/elemental/marid-xmm.md) | | 13 | [Storm Giant](Mechanics/CLI/bestiary/giant/storm-giant-xmm.md) | | 17 | [Dragon Turtle](Mechanics/CLI/bestiary/dragon/dragon-turtle-xmm.md) | | 23 | [Kraken](Mechanics/CLI/bestiary/monstrosity/kraken-xmm.md) | ^underwater-monsters