Green Plesioth is identical in body structure to the common species. It differs greatly in coloration however, featuring deep green scales along with white and purple striped spines and fins.
Green Plesioth is a highly adept swimmer, which gives it a distinct advantage over human hunters during underwater combat. It is able to wield its water sac with more skill and precision than the common species.
Green Plesioth is a highly aggressive wyvern. It has an uncanny ability to determine if there are multiple hunters in an area. Like normal Plesioth, the Green Plesioth loves frogs, which can be used to fish them out of the water. This subspecies is known to travel ashore to attack opponents and prey on land when enraged.
Monster Hunter Freedom 2 / Monster Hunter Freedom Unite
An enormous, flightless, aquatic wyvern with wings that have evolved into fins for swimming. Although superficially fish-like, they can move on land as well. They love frogs.
Monster Hunter 3 Ultimate
A subspecies of Plesioth with jade-green scales. Though primarily aquatic, the creature's movements are equally adept both in and out of water. When enraged, it has a habit of surfacing to rampage on land.
Monster Hunter Frontier G
Green Plesioth goes on land more often than compared to Plesioth, it also is more likely to go on land when enraged.
Green Plesioth can be fished out using a frog, making it vulnerable to attacks for a short time.
They have the ability to put hunters to sleep when they jump over the player after leaping from the water. This ability to put its prey to sleep has been retained in Monster Hunter Freedom Unite; now they can leap out of the water to put hunters to sleep with even greater ease than before.
Green Plesioth is able to fire a sweeping water blast while underwater.
A young Green Plesioth appears as a cameo, swimming off the coast of Cheeko Sands.
There is a minigame where the Palicoes can fish out the young Green Plesioth and earn Green Plesioth materials, but Green Plesioth will only appear occasionally after completing 8★ Gathering Hall Quest Advanced: Chumming The Waters.