Wirtz, Peter2008-12-122008-12-121999"ARQUIPÉLAGO. Ciências Biológicas e Marinhas". ISSN 0873-4704. Nº 17A (1999): 97-990873-4704http://hdl.handle.net/10400.3/146The opisthobranch gastropod Hydatina physis (Linné, 1758) is recorded from the Azores for the first time. The distribution of the species is reviewed. Colour photos of live animals are presented and colour variation of the species is discussed.engGastropode OpistobrânquioAçoresOpisthobranch GastropodAzoresHydatina physisjournal article