RT Journal Article T1 Watersiporidae (Bryozoa) in Iberian waters: an update on alien and native species A1 Reverter Gil, Óscar A1 Souto Derungs, Javier K1 Non-indigenous species K1 Watersipora K1 New genus K1 NE Atlantic K1 Western Mediterranean K1 Strait of Gibraltar K1 Spain K1 Portugal AB Species of the genus Watersipora comprise an important invasive fouling group but are difficult to identify up to species level. This problem, in conjunction with the recent re-description of several member species, requires the revision of previous records and newly collected material in order to more precisely determine their actual presence and distribution. Here, we revise the identity and distribution of alien and native species of Watersiporidae in Iberian waters based on newly collected material, historical collections, and bibliographic data. Four species of Watersipora are now known from here. Watersipora cucullata is the only native species, present in the Spanish Mediterranean. Watersipora subatra seems to have been introduced relatively recently in Iberian and European Atlantic waters and has been expanding to other Atlantic localities. Watersipora arcuata was collected for the first time in Europe at the SW Spanish Atlantic coast in 1990 and recently in Mediterranean marinas. Watersipora souleorum is known in Iberian waters from two localities in the Gulf of Cadiz and in Gibraltar. With the recent redescription of the genus Watersipora, W. complanata is no longer a member. A new watersiporid genus, Terwasipora gen. nov., is described for this species. In Iberian waters, T. complanata comb. nov. is considered a native species, frequent and abundant in shallow waters along the Atlantic coast PB Springer SN 1867-1616 YR 2019 FD 2019 LK http://hdl.handle.net/10347/21532 UL http://hdl.handle.net/10347/21532 LA eng NO Reverter-Gil, O., Souto, J. Watersiporidae (Bryozoa) in Iberian waters: an update on alien and native species. Mar. Biodivers. 49, 2735–2752 (2019) NO The work of Javier Souto was supported by the Austrian Science Fund (FWF, project number AP28954-B29). Part of the samples was collected thanks to the support of the project ‘Fauna Ibérica: Briozoos II (Familia Cribrilinidae–Familia Watersiporidae)’ co-financed by the Ministerio de Economía y Competitividad (Spanish government) and FEDER (project number CGL2010-22267-C07-02) DS Minerva RD 28 abr 2026