On April 30, 2021 a single living specimen of Avenionia roberti was collected with a pondnet between stones on the eastern shore of the river Meuse at Grevenbicht, province of Limburg. This is the first observation of this very rare species in the river Meuse, herewith possibly expanding its distribution area.

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Spirula

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Nederlandse Malacologische Vereniging

T. van Haaren. (2021). Een levende Stompe grondwaterslak Avenionia roberti Boetters, 1967 in
de Maas bij Grevenbicht. Spirula, 428, 51–52.