Echinothuriidae

Echinothuriidae

[‚ek·ə·nō·thə′rī·ə‚dē]
(invertebrate zoology)
A family of deep-water echinoderms in the order Echinothurioida in which the large, flexible test collapses into a disk at atmospheric pressure.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Modified sperm ultrastructure in four species of soft-bodied echinoids (Echinodermata, Echinothuriidae) from the bathyal zone of the deep sea.
The last family, the Echinothuriidae (Echinothurioida), is represented by a single deep-sea species (Table 1).
Modified sperm ultrastructure in four species of soft-bodied echinoids (Echinodermata: Echinothuriidae) from the bathyal zone of the deep sea.
On the basis of adult characters, notably aulodont teeth and hollow spines, Mortensen (1927) placed the family in the order Diadematoida, suborder Aulodonta, in the company of the Echinothuriidae, the Pedinidae, and the Diadematidae.