The invasive Melanoides tuberculata (Müller, 1774), a freshwater and brackish water snail, is reported from Mosta and Baħrija in Malta. Shells from these populations are morphologically distinct from a population at Salini first recorded in 1981.
Shells of Melanoides tuberculata from Malta - specimens from Baħrija, Mosta and Salini.
Cilia, D. P., Sciberras A. & Sciberras J., 2012. Two non-indigenous populations of Melanoides tuberculata (Müller, 1774) (Gastropoda, Cerithioidea) in Malta. MalaCo, 9: 4 pp. accessible here