First Observation of Partial Neoteny in Salamandrina Perspicillata (savi, 1821)

Different forms of neoteny were recorded in some Italian amphibian species: full (absolute or temporary) and partial. However, this physiological phenomenon was never observed in the Italian endemic Salamandrina perspicillata. The authors report the first record of partial neoteny in an individual of this species, a leucistic larva observed in a drinking trough in the Valle del Treja Regional Park (Latium - Central Italy).