Distribution of severe cases of Rostand’s anomaly P: 1 – Port Lyautey near Kenitra, Morocco; 2, 3 – Trévignon and Penloc’h, Finistère, France; 4 – Lingé, France; 5 – Saint-Philbert-de-Grand-Lieu, France; 6 – Amsterdam, Netherlands; 7 – Edrovo village, Russia; 8 – Poperechenskaya Steppe, Russia; 9 – Ostrovtsovskaya Lesosteppe, Russia; 10 – Surskoe Reservoir, Russia (photo: Pelophylax ridibundus individual with severe cases from Ostrovtsovskaya Lesosteppe).

 
 
  Part of: Svinin AO, Bashinskiy IV, Osipov VV, Neymark LA, Ivanov Alexander Yu, Ermakov OA, Litvinchuk SN (2019) New records of the anomaly P syndrome in two water frog species (Pelophylax ridibundus and P. lessonae) in Russia. Herpetozoa 32: 277-281. https://doi.org/10.3897/herpetozoa.32.e47205