Two examples of individual photographic identification. A–B) An individual of H. flavus recaptured; C–D) An individual of H. sarrabusensis kept in a fauna box and photographed during prolonged monitoring. Dorsal pattern (i.e. combination of dark and light pigments) that can be used for individual recognition are encircled in green.

 
 
  Part of: Lunghi E, Romeo D, Mulargia M, Cogoni R, Manenti R, Corti C, Ficetola GF, Veith M (2019) On the stability of the dorsal pattern of European cave salamanders (genus Hydromantes). Herpetozoa 32: 249-253. https://doi.org/10.3897/herpetozoa.32.e39030