Examples of encountered melanistic morphs of Natrix natrix. A. dorsal view of partially melanistic morph with double yellow stripes pattern, Sfântu Gheorghe (photo credit: I. Gherghel); B. dorsal view of melanotic morph, Histria (photo credit: E.A. Telea); C. partial lateral and ventral views of completely melanistic morph, Periboina (photo credit: F. Stănescu).

  Part of: Fănaru G, Telea AE, Gherghel I, Melenciuc R (2022) Melanism in the grass snake Natrix natrix (Linnaeus, 1758) from the Danube Delta Biosphere Reserve, Romania. Herpetozoa 35: 257-263. https://doi.org/10.3897/herpetozoa.35.e85310