A new record of lithistid demosponges is reported from a western Sardinian karstic cave. The new specimen matches the trait of the genus Neophrissospongia (Corallistidae) for an ectosomal skeleton of radial dichotriaenes. a choanosomal skeleton as a network of dicranoclone desmas. and streptaster/amphiaster microscleres with short spiny rays bearing blunt tips. https://vacuumdoctores.shop/product-category/gas-and-fuel-and-oil-and-solution-filters/