Note
Nineteen species of lithistid sponges (Porifera: Demospongiae), representing 13 genera, eight families, and four suborders are reported from the tropical western Atlantic region, including three new records of occurrence: Discodermia verrucosa Topsent, Corallisfes cf. undularus Levi & Levi, and C. cf. nolitangere Schmidt. This inventory of the biodiversity and bathymetric distribution of these sponges is based on the results obtained from 36 expeditions and more than 450 submersible transects.