First record of Dolichophis caspius (Gmelin, 1789), (Reptilia: Colubridae) on the island of Olib, Croatia

During a field study within the framework of a joint Croatian-Hungarian project on the small northern Dalmatian island of Olib, the large whip snake Dolichophis caspius (Gmelin, 1789) was observed and photographed at several localities. Though this is not the first island record of this species in Croatia, as it was previously found on the islands of Lastovo, Kopiste and Mrcara, this finding is surprising due to the great distance from the other known localities of its distribution range.