Porifera · sponges

Boring sponge

Cliona celata

Clionaidae · boring spongesIUCN: Not evaluated
Boring sponge
Photo: Matthieu Sontag · CC BY-SA 3.0 · Wikimedia Commons · resized

A yellow sponge that bores into oyster and clam shells using acid.

Fun factLook for tiny holes peppering old shells on Northeast beaches. That is boring sponge damage.

Waters
Northeast US, Northwest Atlantic, Northeast Atlantic
Depth zone
Coastal shallows & estuaries, Continental shelf
Diet
Bacteria & organic particles (filter feeder)
Size
Masses up to 1 m long

Classification

Porifera › Demospongiae › Clionaidae

  1. Kingdom Animalia animals
    • Many-celled organisms that eat other living things for energy (heterotrophs)
    • Cells have no cell walls
    • Most can move at some stage of life
  2. Phylum Porifera sponges
    • Body is a porous sac with no true tissues or organs
    • Special collar cells (choanocytes) pump water through pores to filter food
    • Skeleton made of tiny spikes (spicules) and/or spongy fibers
  3. Class Demospongiae demosponges
    • The largest group of sponges, about 80% of all species
    • Skeleton of silica spikes, flexible protein fibers (spongin), or both
    • Includes the soft bath sponges people once harvested
  4. Family Clionaidae boring sponges
    • Bore into shells and limestone by dissolving them with acid
    • Often show only small yellow holes or bumps on the surface they live in
  5. Genus Cliona
    • Species in the same genus are very close relatives and often look alike.
  6. Species Cliona celata Boring sponge

Closest relatives in the guide