It used to be claimed that glass sponges could live on nutrients dissolved in sea water and were very averse to silt.

Where spicules of silica are present, they have a different shape from those in the otherwise similar glass sponges.

Some few glass sponges stuck up in clusters, and some fanlike sea fans.

Both kinds have Cambrian representatives and both flourish today, the glass sponges being especially numerous in deep-sea environments.

P. antarcticais a species of glass sponge found in the Weddell Sea.

It is known for its population of bottlenose dolphins, Fiordland crested penguins, and yellow glass sponges.

There are about 500 different kinds of glass sponges, in 17 different families.

Lyssacinosa is an order of glass sponges belonging to the subclass Hexasterophora.

The networks of water passages in glass sponges are similar to the leuconid structure.

Titusvillia was a genus of colonial glass sponges that existed during the carboniferous period around 300 million years ago.