Dactylochirotida

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.

References

Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 995. ISBN 0-03-056747-5. 

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