Italian slow worm
The Italian slow worm (Anguis veronensis) is a European legless lizard belonging to the Anguidae family, primarily found across Italy and southeastern France. It is morphologically similar to other slow worms, with key distinctions including a relatively longer tail, more subcaudal scales, and a more robust head. This species inhabits a variety of environments, from forest-steppes to maquis shrublands, and is generally diurnal but can exhibit crepuscular or nocturnal activity depending on the region.
Key Facts
- ›Distributed throughout Italy and southeastern France.
- ›Distinguished from other slow worms by genetic analysis, longer tail, more subcaudal scales, and a more robust head.
- ›Inhabits diverse habitats including forest-steppes, ruderal areas, and maquis shrublands.
- ›Primarily diurnal, but can be crepuscular or nocturnal in some regions.
- ›Can hybridize with the common slow worm (Anguis fragilis) in northeastern Italy and Slovenia.
- ›Found at altitudes ranging from sea level to over 2,000 meters in the Alps.
Italian Slow Worm
Italy, France
Forest-Steppe, Steppe, Ruderal Areas, Urban Surfaces, Oak Forest Borders, Beech Forest Borders, Sand Dunes, Maquis Shrubland
- Legless Lizard.
- Relatively Longer Tail Compared To Anguis Fragilis.
- More Subcaudal Scales Compared To Anguis Fragilis.
- Relatively More Robust Head Morphology.
- Coloration Differences From Anguis Fragilis Are Negligible.
- External Ear Opening Presence Shows Insufficient Variation For Differentiation.
- Primarily Diurnal Activity.
- Occasionally Crepuscular Activity.
- Can Be Mostly Crepuscular and Sometimes Nocturnal In Mediterranean Regions.
- Occasional Hybridization With Anguis Fragilis Occurs.
About Italian slow worm
The Italian Slow Worm
The Italian slow worm, scientifically known as Anguis veronensis, is a species of legless lizard belonging to the Anguidae family. This European reptile is distributed across Italy and extends into the southeastern parts of France, primarily in the Provence-Alpes-Côte d'Azur region, and has also been confirmed on the island of Ile Sainte-Marguerite.
Taxonomy and Distinguishing Features
Historically, populations of slow worms from the Italian Peninsula were often grouped with the common slow worm, Anguis fragilis. However, distinct evolutionary and genetic characteristics led to its recognition as a separate species. While morphologically very similar to other slow worms, Anguis veronensis can be identified through genetic analysis. Morphological differences include a relatively longer tail in both sexes, a greater number of subcaudal scales, and a more robust head structure compared to Anguis fragilis. Coloration and the presence of external ear openings show little variation for differentiation.
Distribution and Habitat
The Italian slow worm's range is predominantly the Italian Peninsula, with northern areas showing larger populations than the south. In northeastern Italy and parts of Slovenia, it can come into contact with and occasionally hybridize with the common slow worm. The species occupies a variety of habitats, including forest-steppes, steppes, and ruderal areas, with some individuals adapting to urban environments. In central and southern Italy, their habitats are often found at the edges of oak and beech forests, as well as on sand dunes within Mediterranean maquis shrubland. They are known to inhabit altitudes ranging from sea level up to over 2,000 meters in the Alps.
Behavior and Activity
Most Italian slow worms are primarily diurnal, meaning they are most active during daylight hours. However, individuals found in Mediterranean climates tend to exhibit more crepuscular behavior, being active at dawn and dusk, and sometimes even nocturnal activity has been observed.
Source: Wikipedia ↗
Frequently Asked Questions
What is the scientific name for the Italian slow worm?
The scientific name for the Italian slow worm is Anguis veronensis. It was previously known by the synonymous scientific name Anguis cinerea before being updated to the oldest available name for the taxon.
Where is the Italian slow worm found?
The Italian slow worm is found across the Italian Peninsula and in the southeastern region of France, specifically Provence-Alpes-Côte d'Azur. Its distribution may also extend to southern parts of Switzerland, and it has been confirmed on the island of Ile Sainte-Marguerite.
How can the Italian slow worm be distinguished from other slow worms?
Distinguishing the Italian slow worm from closely related species like Anguis fragilis is best done through genetic analysis. Morphologically, it differs in having a relatively longer tail in both sexes, a greater number of subcaudal scales, and a more robust head structure.
What types of habitats does the Italian slow worm inhabit?
The Italian slow worm occupies a range of habitats. Northern populations are found in forest-steppes, steppes, and ruderal areas, sometimes including urban environments. In central and southern Italy, they are more commonly found at the borders of oak and beech forests, and in Mediterranean maquis shrubland on sand dunes.
What is the activity pattern of the Italian slow worm?
The Italian slow worm is predominantly diurnal, meaning it is active during the day. However, individuals in Mediterranean regions tend to be more crepuscular (active at twilight) and occasionally nocturnal (active at night).
Does the Italian slow worm hybridize with other species?
Yes, in northeastern Italy and Slovenia, the Italian slow worm sometimes comes into contact with the common slow worm (Anguis fragilis), resulting in occasional hybridization. These hybrid populations have been documented in Slovenia.
Related Lizards
Anguis veronensis
Anguis veronensis, also known as the Italian slow worm, is a legless lizard species found across Italy and parts of southeastern France. It is distinguished from similar species by its relatively longer tail, more subcaudal scales, and a more robust head, although genetic analysis is often required for definitive identification. This species inhabits a variety of environments, from forest-steppes and urban areas to Mediterranean shrublands, and is primarily active during the day or twilight.
Darevskia
Darevskia, commonly known as rock lizards or meadow lizards, are a genus of small lizards native to the Caucasus, Iran, and Turkey. They are characterized by their flattened bodies, pointed heads, and long legs with sharp claws, adapted for climbing rocky terrains. These lizards inhabit a variety of environments, from mountain steppes to anthropogenic structures, and exhibit diverse coloration patterns.
Agama bibronii
Agama bibronii, commonly known as Bibron's agama or the North African rock agama, is a medium-sized lizard native to northwestern Africa. This species inhabits rocky areas and is characterized by its greyish-green coloration with brown spots, and distinct blue heads in males. They are diurnal, omnivorous, and play dead when threatened.