The Green Leaf Worm (Eulalia viridis) is a species of polychaete worm which can be found all around the UK, Ireland and the rest of Europe. It has a long body and looks similar to a ragworm, although the colour is usually a bright shade of green with yellowy bristles running down the sides of the body. Often found in rocky areas it will live in heavy weed cover or in shellfish beds or under rocks. There is a lack of consensus in the scientific community over how the green leaf worm feeds. Some believe it is a scavenger, eating dead crustaceans and shellfish, whereas others believe it will actively feed on small crustaceans. The way species reproduces is also poorly understood.