. . . . . . . . . "Natrix tessellata" . . "Salmo trutta" . . "Andrea Peterlongo. 1989. Natrix tessellata interaction->preyed upon by Salmo trutta. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/7594445> on 05 Apr 2018." . . . . "http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world." .