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The lower Middle Elbe basin with its rich water meadow is also of outstanding important for amphibians such as the European fire-bellied toad, the European tree frog and the moor frog.
Besides the common toad from which this roundworm was first described, it has been found in the common spadefoot toad (Pelobates fuscus), the common frog (Rana temporaria), the moor frog (Rana arvalis), the agile frog (Rana dalmatina), the European fire-bellied toad (Bombina bombina), the yellow-bellied toad (Bombina variegata), water frogs (Pelophylax spp.) and the European green toad (Bufo viridis).