This Seiken Densetsu monster takes its name from the Sahagin enemies in Final Fantasy games, which adapted the name Sea Hag into Sahagin similar to what happened with the Sahagin enemies in Dungeons and Dragons. In Final Fantasy games and in Dungeons and Dragons the Sahagin are either Merfolk or very humanoid aquatic beings, but in the Seiken Densetsu series they are amphibious fish with legs who always weild small tridents. Both Sahagins and Petit Poseidons make appearances in SwoM and CoM.
These fish people live around West Lake and fight alongside Mandrakes. They attack by throwing tiny tridents.
In SoM Water Thugs are classified as Fish.
Water Thug / Sahagin (J)
Water Thugs are found to be living around Matango and the Great Forest. They attack by jumping at you or by throwing their small tridents. When they are about to attack they have a tendency to spin around and make lots of noise before throwing.
Ice Thug / Petit Poseidon (J)
These Thugs are only found in the Pure Land. Besides being able to cast Cure Water they act the same as Water Thugs.
In SD3 Sahagin are classified as Fish.
These fishy enemies live inside the Labyrinth of Ice Walls as well as in an ice room in the Mirage Palace. They have a bubble attack which homes in on your character and lowers their defense. They attack by jabbing with their trident more than throwing it, and have a powerful Hundered Spear Thrust. Their scales will increase the intelligence of one of your characters.
Petit Poseidons are also found in the Labyrinth of Ice Walls. If they are alone or another monster is killed near them they may summon a Sahagin to fight with them. They have a bubble power down attack which will shoot homing bubbles at all of your characters. They have a Harpoon Hail attack which rains tridents down in random areas around them.
In LoM Water Thugs are classified as Demi-Humans.
Sahagin live in various areas around the world in LoM. They attack by stabbing with their trident and will sometimes throw it. A Sahagin named Tikkle will appear in the Duma Desert with a quest if Dryad is at level three. This Sahagin is considered a wimp by the others and sets out to defeat Kima to prove he is a hero. The name of the quest “The Wimpy Thugling” makes reference to the English name for the enemies used in SoM. As a pet Tikkle will increase the damage you do with piercing attacks.