Die Concolor-Variante bei der Waldeidechse (Zootoca vivipara)

The concolor morph in the Common Lizard (Zootoca vivipara). We report on the discovery of a (nearly) patternless Common or Viviparous Lizard (Zootoca vivipara) from Lower Saxony (not far away from Hannover). Its appearance corresponded to the so-called concolor morph which is know from other lizards (especially Lacerta and Podarcis species, Kramer 1941). Our research revealed further records of (nearly) patternless Viviparous Lizards. In patternless Z. vivipara, the occipital line on the middle of the back might be faintly recognisable, whereas the other typical drawing elements are missing. A description using the term concolor did not seem to exist for Z. vivipara until now. We propose this name for the colour variant presented here.