Natrix tessellata, Dice Snake

Natrix tessellata
photo fid14257, Jiří Hejduk, 29.06.2017,

this photo is related to locality find:
id11336, Natrix tessellata, Bulgaria > Black Sea coast > Kosti, Кости, 20 m a. s., Jiří Hejduk, Ota Knobloch, Martin Vlček, 02.05.2017, 29.06.2017,