Topic summary
Natrix natrix
Extracted from the Wikipedia article Grass snake.
Subspecies
Natrix natrix helvetica (Lacépède, 1789) was formerly considered as a subspecies, but following a genetic analysis it was recognised in August 2017 as a separate species, Natrix helvetica, the barred grass snake. Four other subspecies were transferred from N. natrix to N. helvetica, becoming N. helvetica cettii, N. helvetica corsa, N. helvetica lanzai and N. helvetica sicula. The subspecies N. natrix astreptophora, found in the Iberian peninsula, the Pyrenees, and North-Western Africa, has been reclassified as its own species Natrix astreptophora or the Iberian grass snake.