Russian Doll Glass Sponges [Lanuginellidae]

Description

Lanuginellidae, or Russian doll glass sponges, are a family within the Hexactinellida class, distinguished by their unique skeletal structure that resembles a series of nested cups or Russian dolls. These sponges are found in deep-sea habitats and are known for their intricate siliceous skeletons. The skeletons are composed of multiple layers of silica spicules that provide both support and protection. This unique arrangement not only contributes to the physical stability of the sponges but also to their ecological role as habitat providers in the deep-sea environment.

Genera

Taxonomy