Two new species of Cryptopontius Giesbrecht, 1899 (Copepoda, Siphonostomatoida, Artotrogidae) associated with invertebrates from Northeastern Brazil
Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico, with the description of the first Mexican stygobiont sponges
Description of two new species of Dysidea (Porifera, Demospongiae, Dictyoceratida, Dysideidae) from Tauranga Harbour, Bay of Plenty, New Zealand
Three new Raspailiidae Hentschel, 1923 (Axinellida, Demospongiae) from Peru
A new species of Haliclona (Flagellia) Van Soest, 2017 (Porifera, Demospongiae, Heteroscleromorpha) from the Gulf of St. Lawrence, Canada
Carnivorous sponges from the Australian Bathyal and Abyssal zones collected during the RV Investigator 2017 Expedition
Carnivorous sponges (Porifera, Cladorhizidae) from the deep South Pacific (New Caledonia) with the description of three new species of the genus Abyssocladia and remarks on genus Cercicladia
