Leucaltis

Leucaltis is a genus of calcareous sponges belonging to the family Leucaltidae. These sponges are found in marine environments. They are characterized by their asconoid body plan, which means they have a simple, vase-like structure with a single opening (osculum) at the top. The body wall is perforated by small pores (ostia) through which water enters. Leucaltis sponges are typically small and fragile, with a white or pale coloration, reflecting their calcareous skeletal structure. They are found in a variety of locations around the world, often attached to rocks or other submerged surfaces in shallow waters. Their classification and specific identification can be complex due to variations in skeletal structure and overlapping characteristics with other related sponge genera.