Natuurtijdschriften

Toegang tot tijdschriften over de Nederlandse natuur

A population of the Wall snail Balea perversa was found on the remains of the 13th century city walls of Maastricht, the capital of the province of Limburg. This finding corroborates an earlier report by others on the possible recovery of the same species from the ‘Hoge Fronten’: remains of Maastricht’s 18th century ramparts.