Hymedesmiidae

The Hymedesmiidae are a family of sponges belonging to the order Poecilosclerida. This family is comprised of over 200 species found worldwide, primarily in marine environments. They are generally small and inconspicuous, but some can grow up to several centimeters in size.

Bloody Crater Sponge – Phorbas fictitius

Crater Sponge – Hemimycale columella

Common Names

There are no common names for members of the Hymedesmiidae family.

Characteristics

Hymedesmiidae sponges are typically encrusting or massive in form, often with a tough, leathery texture. They are characterized by a skeleton composed of siliceous spicules, which are small, needle-like structures. The spicules are arranged in a variety of patterns, which can be used to identify different species.

Some of the key characteristics of the Hymedesmiidae family include:

  • Presence of microscleres (small spicules)
  • Acanthostrongyles (spicules with a pointed end) often present
  • Megascleres (large spicules) often present
  • Some species may have a distinctive, branching growth pattern

Environments

Hymedesmiidae sponges are found in a wide range of marine environments, including:

  • Shallow coastal waters
  • Deep sea environments
  • Coral reefs
  • Rocky shores

They are often found attached to rocks, shells, or other hard substrates.

References

For further information, please refer to these reliable sources: