spongilla

Spongilla Spongilla is a genus of freshwater sponges well-known for thriving in lakes, ponds, and slow-moving streams. These sponges play important ecological roles by filtering water and contributing to aquatic ecosystems. The freshwater sponge genus Spongilla is a member of the Phylum Porifera. In ponds and lakes, it is frequently seen affixed to submerged rocks,