Invasion

Invasion Description

Type locality- Venice/Italy/Venice Lagoon '(Olivi, 1792- Very old Mediterranean record (Olivi, 1792), its main range is in the North Atlantic. Genetic investigations could not determine whether it is a relict from a former cold climatic spell or has been introduced from the Atlantic (Jansson, 1985; Reid, 1996).' (Zenetos et al. 2003). However, a more recent genetic study indicated that the Venice population is introduced, form northern Europe, ay least 300 years ago, and possibly centuries earlier (Panova et al. 2011; Crocetta 2011; Crocetta et al. 2013; Boffo et al. 2022).  An nu=iche analysis by Boffo et al. suggest that the Lagoon of Venice may be the only suitable Mediterranean habitat for this snail.

Geographic Extent

Venice/Italy/Venice Lagoon '(Olivi, 1792, cited by Galil et al. 2002); Lido, Venice/Italy/Adriatic Sea (1883, USNM 185653, U.S. Museum of Natural History 2002; Boffo et al. 2022)