Poeobius meseres

Poeobius is a genus of marine polychaete worm. It contains the single species Poeobius meseres, or balloon worm. This is a common and abundant resident in the midwater around the mesopelagic and bathypelagic zones, especially in Monterey Bay. They can be found at around 300-2,500 m (980-8,200 ft) depth from Japan to Alaska to the Gulf of California, and have also been reported in South America.