Echiurida is a suborder of the order Echiuroidea, an order of

polychaete Polychaeta () is a paraphyletic class of generally marine annelid worms, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made ...

worms.

Families

The following families are classified within the suborder: *

Echiuridae Echiuridae is a family of spoon worms in the suborder Echiurida. It is a monotypic family, the only genus being ''Echiurus''. These worms burrow into soft sediment on the seabed. Species The World Register of Marine Species recognises the fo ...

Quatrefages, 1847 *

Thalassematidae Thalassematidae is a family of spoonworms in the suborder Echiurida. Genera The World Register of Marine Species includes these genera in this family:- *'' Anelassorhynchus'' Annandale, 1922 *'' Arhynchite'' Satô, 1937 *'' Ikedosoma'' Bock, ...

Forbes ''Forbes'' () is an American business magazine owned by Integrated Whale Media Investments and the Forbes family. Published eight times a year, it features articles on finance, industry, investing, and marketing topics. ''Forbes'' also r ...

& Goodsir, 1841 *

Urechidae Urechidae (commonly known as "fat innkeeper" or "penis fish") is a family of spoonworms in the subclass Echiura. The only genus in the family is ''Urechis'', which has four species. Species The World Register of Marine Species The World Regi ...

Monro, 1927

References

{{Taxonbar, from=Q18668416 Echiurans