The species highly resembles Pelophylax ridibundus, from which it was only distinguished in 1991 by bio-acoustic analysis.

The Marsh Frog (Pelophylax ridibundus) is the largest frog native to Europe and belongs to the family of true frogs.

Marsh Frogs (Rana ridibunda or Pelophylax ridibundus) live almost exclusively near stable water pools or winter pools, mainly in north and central Israel.

The Marsh Frog Pelophylax ridibundus (a non-native species introduced from Europe in the 1930s) is now commonly found in the upper Mole and its tributaries around Newdigate and Gatwick.

Other renderings of frog calls into speech include "brekekekex koax koax", the call of the marsh frog (Pelophylax ridibundus) in The Frogs, an Ancient Greek comic drama by Aristophanes.