Estuarine Stonefish
Synanceia horrida
- Least concern
- Card rarity: Common
- Fish

Synanceia horrida, the estuarine stonefish, hollow-cheek stonefish, horrid stonefish, rough stonefish or true stonefish, is a species of venomous, marine ray-finned fish, a stonefish belonging to the subfamily Synanceiinae which is classified as being within the family Scorpaenidae, the scorpionfishes and their relatives. It is a benthic fish which is found in the Indo-Pacific region. This species is considered to be one of the most dangerous venomous fish in the world. It is a popular exhibit in public aquaria and is found in the private aquarium trade.
Classification
- Class
- Actinopterygii
- Order
- Perciformes
- Family
- Synanceiidae
- Genus
- Synanceia