Habitat: Occasional on reef environments. Distribution: Jamaica, St. Vincent, Martinique, Bocas del Toro. Characteristics: Massive to thick cushions, 2-8 cm thick. Circular to elliptical oscula, 0.5-1 cm wide, with raised whitish to transparent rims. The sponge is white to transparent externally and light-blue internally. Crisp, hard, and fragile in consistency.