Octocorals with an arborescent or clavate form and fleshy stalk
without a consolidated axis or medullar region; gastric cavities
of polyps extend to the base of the colony. In the Atlantic, this
group is limited to a few shallow water species, with the majority
of true “soft corals” inhabiting deeper (>200m) areas.
Nephtheids have arborescent colonies with non-retractile
polyps that are concentrated in clusters at the ends of branches. Pseudodrifa
1868), the only representation of this family in the SAB, is generally restricted
to deep water. See Utinomi (1961) for remarks about this family.