Echiura (Spoon Worms) is a class of segmented worms. There are 172 species of spoon worms, in 40 genera and 5 families. They includes groups like Ikedidae, Urechidae, and Bonelliidae. They are downward conveyors. They are facultatively mobile animals.
EOL has data for 16 attributes, including:
The environments in which many spoon worms species are known to live. Select an environment to see its spoon worms species checklist.