Lanza's alpine salamander


Lanza's alpine salamander or the large alpine salamander is a species of salamander in the family Salamandridae, found in France and Italy. Its natural habitats are forests, grasslands, and pasturelands, all of which are temperate. It is threatened by habitat loss.

History

It was described by Nascetti, Andreone, Capula and Bullini in 1988. The generic name is from Greek which translates as "salamander", and the specific name is for, an Italian herpetologist.

Description

The species has a flat head and measures between in length. Its tail's tip is either rounded or pointed, with or without paravertebral glands. Due to its black colour, it is similar to the other alpine salamander, Salamandra atra atra.

Distribution

The species can be found in the Cottian Alps near Monviso, and in Guil Valley of southeastern France. It can also be found in northwestern Italy, the Germanasca, Pellice Valleys, and the Po River. It is doubtful in Chisone Valley. An old sample of the species in Museo La Specola in Florence suggests it is also found in the Maritime Alps.

Ecology

They feed on various insects, spiders, and various species of slugs.

Habitat

They are found at elevations of, with the maximum altitude of. In France, the species can be found at, while in Italy it is found at in altitude. A subalpine prairie is considered to be home for them. It also lives in fresh humid woods and forests and on the edges of mountainous streams.

Mating and reproduction

They start mating on land, from May to October. During that time, they become nocturnal, but during heavy rains, they may become diurnal. Mating happens on land mostly in May, but it depends on the climate of any given year. They give birth from two to six young, which are born completely formed, after their mating act is successfully fulfilled, which is as long as three to four years.

Toxicology

They are toxic species. When under threat, they release a liquid toxin through the small openings on their bodies. The liquid is strong and may cause irritation if in contact with the eyes. They warn predators by raising their bodies and dipping their heads downwards when threatened.

Predators

Various birds and vipers are a threat to Lanza's alpine salamander.