Lebertia (Mixolebertia) halberti Koenike, 1902

Synonym: Lebertia (Mixolebertia) schmidtii Thor, 1911

Type material: Holotype (Koenike 1902), possibly not deposited in any scientific collection.

Type locality: Ireland: Dartrey (Koenike 1902) .

Geographical distribution: North Europe (Di Sabatino et al. 2010).

Distribution in Portugal: North: International Minho River (Cantallo et al. 2021), in Valença municipality-São Pedro da Torre.

Material examined: 0/0/1; Pedro da Torre, Portugal; 41º59′42.05″N, 8º40′27.94″W; 24 September 2020; coll by Aquamuseu Team; catalogue number NatMIP-CATr-0007 .

Ecological notes: In standing waters (Di Sabatino et al. 2010). In Minho River, one individual was collected in the main sector, on sediment type ‘moderately sorted coarse sand’ (Cantallo et al. 2021), in which logarithmic main grain size value was 0.633.

Remarks: First record mentioned for Portugal (Cantallo et al. 2021), and also represents the first occurrence for Southern Europe.