Boring sponge explained

Boring sponge may refer to several different species of sponges:

• Cliona californiana, the yellow boring sponge or sulphur sponge
• Cliona celata, commonly named the red boring sponge
• Cliona viridis, commonly named the green boring sponge
• Dragmacidon lunaecharta, commonly named the red boring sponge
• Pione vastifica, commonly named the red boring sponge