Dictionary

hexactinellid en · NOUN

Meanings

1. Any of the many sponges of class Hexactinellida, which have hexactine spicules; a glass sponge.
   • The skeleton of a hexactinellid is composed entirely of silica in the form of six-pointed siliceous spicules.[…]Hexactinellids are completely sessile; even the larvae seem to display no movement outside of their ability to disperse small distances with currents. 2015, Dennis Holley, General Zoology: Investigating the Animal World, page 193:
   • But Aka is also found in skeletons of hexactinellids and lithistids in Jurassic sponge mounds. 2012, Joachim Reitner, Helmut Keupp, editors, Fossil and Recent Sponges, page 5:
   • 2007, S. P. Leys, et al., The Biology of Glass Spomges, David W. Sims (series editor), Advances in Marine Biology, Volume 52, page 78, Spicules of hexactinellids are nearly indistinguishable from those of demosponges in most measured characteristics.

Forms

Relateds

hexactine

Synonyms

hexactinellid sponge (any species of Hexactinellida) · glass sponge (any species of Hexactinellida)