Alvinella pompeiana also known as the Pompeii Worm, is a deep sea polychaete worm. It is found only at hydrothermal vents, which can range in temperature from 60degrees up to 464degrees, in the Pacific Ocean. And were discovered in the early 1980’s. They can reach up to 13cm and form large aggregate colonies enclosed in delicate, paper-thin tubes. They have a feather-shaped head made up of gills, coloured red by hemoglobin.