Tropicorbis isthmicus Pilsbry is found on the islands of Curaçao and Bonaire. Other Tropicorbis species may also be present. Australorbis glabratus lugubris Wagner, and Helisoma duryi intercalare Pilsbry were imported into Curaçao from Venezuela. The Australorbis species was found only once in Aruba in an aquarium. Autochthonous cases of schistosomiasis have never been reported from the Netherlands Antilles.