Ennucula tenuis (Montagu, 1808)

Size Up to 19 mm, usually 10-13 mm. Color Periostracum olive-yellowish or brown to dark brown, shiny. Habitat Silty sand to silt, often with gravel or stones. Rare on sand. Depth Sublitoral-bathyal. Feeding Detritus feeder. Life cycle Mucous egg capsules on the surface of sediments. Distribution Widespread boreal-arctic.