Dactylochirotida | |
---|---|
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Echinodermata |
Class: | Holothuroidea |
Subclass: | Dendrochirotacea |
Order: |
Dactylochirotida Pawson and Fell, 1965 |
Families | |
Rhopalodinidae
Vaneyellidae
Ypsilothuriidae
Dactylochirotida is an order of primitive sea cucumbers. Unlike other sea cucumbers, their tentacles are not divided into multiple branches, and the body is enclosed within a flexible shell-like structure called a test.
Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 995. ISBN .