Psolus phantapus, also known as the brown psolus, is a species of sea cucumber in the family Psolidae.[1]
Psolus phantapus have cylindrically body arched at both ends to form a U shape.[2] They grow up to 200 mm in length. They have a rectangular ventral sole at the base where tube feet concentrate.[3] Their colour range from yellowish brown to dark brown and black.
Psolus phantapus are epifaunal and use the ventral sole to attach themselves. They are found at 4-500 m depth.
They are deposit feeders. They have ten bushy orange tentacles[4] that collect food from water.
They reproduce sexually. Breeding season is February-march.
They are found in Arctic and Atlantic ocean.[5]