Jean Hermann, l’holotype et le néotype de la Couleuvre de Montpellier, Coluber monspessulanus Hermann, 1804 (Reptilia, Squamata)

The Montpellier Snake, emblematic snake of the Mediterranean Midi, is currently named Malpolon monspessulanus (Hermann, 1804). It was described as Coluber monspessulanus by Jean Hermann, in a posthumous work published in 1804. More than two centuries later, the single type or holotype was not located in the collections of the Musée zoologique de la ville de Strasbourg. It had been sent to Hermann by a physician and naturalist of Montpellier, Guillaume Joseph Roubieu. A neotype of Coluber monspessulanus is here proposed and described. To this description are added several data on the peculiarities, especially morphological, of the species.