Boettgerilla pallens
Boettgerilla pallens, common name the worm slug, is a European species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Boettgerillidae. Distribution The type locality of Boettgerilla pallens is Gudauta in Abkhazia. The native distribution of Boettgerilla pallens is believed to be the SW flank of the Caucasus: Abkhazia western Georgia Maybe it is also native to Armenia, the Crimean Mountains and Donetsk Upland in Ukraine. But the species has spread spectacularly over the last half century. Dates of first recorded occurrences in various countries are listed in Reise et al. (2000). In Europe, Boettgerilla pallens was first found in 1949 (in Germany). It has now become naturalized in most of Europe although it has conspicuously not been reported from most of Spain, Italy and the Balkan Peninsula. Countries where it occurs include: Ireland - since 1973 Great Britain - since 1972 France Belgium Netherlands Germany Switzerland. Austria Czech Republic Slovakia Poland - since 1954, mainly in the south-western Poland Finland Sweden Lithuania Russia: Moscow, Saint Petersburg and other cities Spain (north only) and Andorra Italy (north only) Romania Bulgaria Ukraine - Kyiv, Lviv, Ivano-Frankivsk, Vinnytsia, some cities of Crimea and others Iceland Outside Europe it is