What is "calotriton"

Calotriton, or the European brook newts, is a genus of newts native to the Pyrenees and central Catalonia ( Catalan Pre-coastal Range). These amphibians were formerly placed within genus Euproctus, but the genus was resurrected in 2005. Instead of Euproctus, they seem more closely related to Triturus, their sister taxon.