1.

Is the semi-slug Vitrinobrachium breve (A. Férussac, 1821) (Gastropoda: Vitrinidae) really new for Belgium? A historical investigation

2.

Is the semi-slug Vitrinobrachium breve (A. Férussac, 1821) (Gastropoda: Vitrinidae) really new for Belgium? A historical investigation

3.

Is the semi-slug Vitrinobrachium breve (A. Férussac, 1821) (Gastropoda: Vitrinidae) really new for Belgium? A historical investigation

4.

Is the semi-slug Vitrinobrachium breve (A. Férussac, 1821) (Gastropoda: Vitrinidae) really new for Belgium? A historical investigation

5.

Is the semi-slug Vitrinobrachium breve (A. Férussac, 1821) (Gastropoda: Vitrinidae) really new for Belgium? A historical investigation

6.

Is the semi-slug Vitrinobrachium breve (A. Férussac, 1821) (Gastropoda: Vitrinidae) really new for Belgium? A historical investigation

7.

Is the semi-slug Vitrinobrachium breve (A. Férussac, 1821) (Gastropoda: Vitrinidae) really new for Belgium? A historical investigation