His considerable research output includes a number of comprehensive reviews that document the slug faunas of particular countries or revise the taxonomy of whole families.

Andrzej Hubert Wiktor was born 4 February 1931 in Nowa Wieś, near Rzeszów, in south-east Poland.

His 108 publications (bibliography at [1] supplemented in [3] but overlooked [4]) include books and long monographs dealing comprehensively with the slug fauna of particular countries or revising the taxonomy of entire families.

He was a keen traveller and collector of slugs, mostly in Europe but even as far afield as China and Papua New Guinea, so that Wrocław now has a uniquely rich collection.

[3][6] Wiktor was the youngest of four siblings; their father was a landowner but the family were expelled from their land after the communist take-over.