Corsican Salamander, Salamandra corsica
Savi, 1838

History and origin
The Corsican salamander was first described by Savi in 1838, the scientific name of this species is Salamandra corsica. Salamandra is from Greek and means 'salamander', the common name for this kind of animal in Greek. Corsica is Latin and means 'from Corsica'.

Corsican salamander - © Wouter Beukema
Corsican Salamander, Salamandra corsica - © Wouter Beukema

Corsican salamander - © Xavier Rufray
Corsican Salamander, Salamandra corsica - © Xavier Rufray

Corsican salamander - © Xavier Rufray
Corsican Salamander, Salamandra corsica - © Xavier Rufray

Characteristics
This species is only found on Corsica and this is the only species of this family present on that island. They are characterised by their more chunky appearance and smaller paratoid glands that separate them from S. salamandra.

Description
=Size=
- Eggs: This species doesn't lay eggs.
- Larva: The larva measure 24 to 35 mm long when they are born.
- Juveniles: The juveniles measure 46 to 65 mm long when they metamorphose.
- Adults: Males measure up to 180 mm long (max. : 200 mm long), females measure up to 190 mm long (max. : 210 mm long).
=Morphology=
- Eggs: This species doesn't lay eggs.
- Larva: They look like a newt with a small tail crest, a fish-like head and external gills.
- Adults: They are lizard like. They have a very bulky body, short fat tail, robust limbs. They have smooth skin which is ripely with smooth wart-like bumps mainly present on top of the flanks. They lack any crests. They have a pair of paratoid glands, rather square like (as long as large) compared to the Fire salamander. Along the middle of their back they have in rows of two, a formation of small openings. Their limbs lack webbing. Their pupils are rounded.
=Patterns & colours=
- Eggs: This species doesn't lay eggs.
- Larva: At the earliest stages they have red external gills, they don't have much colour, only a set of dull dark shades of brown.
- Adult: They are easily identified thanks to their pitch black colour scattered with small vivid yellow blotches along the back and flanks. Their belly is dark in colour with a series of lighter spots, otherwise their black pattern can continue onto the underside. Their eyes are black.

Geographical range
They are only found on Corsica.

Subspecies
None described.

Sexual differences
Males have a much larger swollen cloacae, their front legs are longer. Males are usually more robust then females.

Seasonal variations
Females are very fat whilst they are pregnant.

Diet
They feed on worms, slugs, spiders, moths... Larva eat small water insects, if population density in the water is large, they may become cannibalistic.

Defensive habits
Their main defensive act is to secrete trough the small openings on their body a venomous liquid substance, strong, this venom can cause irritations if in contact with your eyes. This venom is strong enough to kill most animals that eat the specimen. This venom becomes weaker as the specimen grows older. Their bright yellow colouring is a warning of this. Otherwise, when threatened they will raise their body and dip their head downwards.

Reproduction
Mating happens on land in summer (June-July). Larva are born in spring of the following year. When they are born they may be encased in a thin jelly like casing from which they escape shortly after being born. The females move to the water to give birth and she may spend a few days giving birth. The number of larva born is not well know but may be between about between 10 to 35. They metamorphose up to 7 months later, but sometimes in only 2. There has already been observed young that are born fully metamorphosed.

Sexual maturity, life span
The average life span for Salamandra corsica is about 20 years, they reach their sexual maturity in between 4 to 6 years.

Habits
They spend most of their days in their holes or burrows underground, these refuges can be abandoned holes of other animals (mice), hollow wood, roots, under large stones... These refuges are situated no further away from the water occupied by their larva then 100 m. The adults return to the same hide out after every nocturnal excursion. Ideal conditions to observe this species is a cool temperature and humid or rainy conditions, no wind and little or no lunar glow. Females may be observed in the snow if their larva are ready to be born, the females will be very determined to get to the water and may be seen by day. They are very secretive outside of the two major activity sprees (the spring and autumn rainfall). The larva are harder to observe as they are active only at night and spend the day hidden under stones at the bottom of the water of amongst vegetation.

Habitat
They are found at between 50 to 1800 meters in altitude, being more common at around 600 to 1000 meters. They inhabit forests, damp and humid. Sometimes live in caves, they are common on hillsides and in altitude then on coastal areas. Their ground habitat is usually made up of leaves or all sorts, in beech forests, ash and oak forests and pine forests on limestone areas. This species is missing from all habitats with loose soil (sand, loose earth...), as well as on the coast and near lightly acid water. They are rare in floodable areas surely because of their poor swimming skills. They are also missing from pure coniferous forests. Larva are found in waters rich of oxygen such as water falls, sources and fountains. The adults avoid all areas with fish such as ponds, stagnant water and such like to give birth.

Predators
Not much is known about their predators, animals that eat this species usually vomit or die. Birds and small mammals feed on larva and young specimens. Larva are also eaten by trout and dragon fly larva.

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