Lacertidae
Oviparous (most species), Viviparous (some species), Parthenogenetic (some species)
Lacertidae, commonly known as wall lizards or true lizards, are a diverse family of reptiles native to Afro-Eurasia, representing the dominant reptile group in Europe. These lizards are typically small to medium-sized with slender bodies and long tails, exhibiting varied patterns and colors. They primarily inhabit forest, scrub, grassland, and desert environments, with some species adapted to arid, rocky areas.
Key Facts
- ›Lacertidae is a diverse family with approximately 360 species across 39 genera.
- ›They are predominantly found in Afro-Eurasia and are the most common reptiles in Europe.
- ›Most species are small, measuring less than 9cm excluding the tail, with the largest reaching 46cm.
- ›Their coloration and patterns are highly varied, even within the same species, and males and females are often sexually dimorphic.
- ›The family includes both insectivorous species and at least one species with a diet that can include seeds.
- ›Some species are parthenogenetic, and a few give birth to live young.
Wall Lizards, True Lizards, Lacertas
Afro-Eurasia
- Small To Medium-Sized Lizards.
- Most Species Are Less Than 9cm Long, Excluding the Tail.
- Largest Living Species Reaches 46cm.
- Slender Bodies and Long Tails.
- Highly Varied Patterns and Colours, Even Within the Same Species.
- Scales Are Large On the Head, Often With Osteoderms.
- Scales Are Small and Granular On the Back.
- Scales Are Rectangular On the Underside.
- Most Species Are Sexually Dimorphic, With Males and Females Having Different Patterns.
- Some Species Have Flattened Bodies and Broad Tails .
Primarily Insectivorous, Arthropods, Plant Matter, Seeds
- Some Species Are Gliders.
- Sexually Dimorphic With Different Patterns Between Males and Females.
- Some Species Are Parthenogenetic.
- Some Species Give Birth To Live Young.
About Lacertidae
Lacertidae: The Wall Lizards
The Lacertidae family, commonly referred to as wall lizards or true lizards, comprises a diverse group of reptiles native to Afro-Eurasia. This family is particularly significant in Europe, where it represents the dominant group of reptiles found. With approximately 360 species spread across 39 genera, Lacertidae showcases a wide range of adaptations and appearances.
Habitat and Distribution
Lacertids exhibit varied habitat preferences depending on their geographic location. In Europe and the Mediterranean region, they are primarily found in forest and scrub habitats. Their counterparts in Asia, such as species within the Eremias and Ophisops genera, are adapted to grassland and desert environments. African species typically inhabit rocky, arid areas. A few species, like those in the genus Holaspis, are arboreal and have evolved adaptations for gliding, utilizing flattened bodies and broad tails.
Physical Characteristics
These lizards are generally small to medium-sized, with most species measuring under 9 centimeters in body length, excluding the tail. The largest known living species, Gallotia stehlini, can reach up to 46 centimeters. Lacertids are characterized by their slender bodies and long tails. While their basic body plan is similar, they display a remarkable diversity in patterns and colors, which can even vary within the same species. Their scales are typically large on the head, often accompanied by osteoderms, while the back scales are small and granular, and the underside scales are rectangular. Sexual dimorphism is common, with males and females often presenting distinct patterns.
Diet and Reproduction
The diet of Lacertidae is primarily insectivorous, feeding on a variety of arthropods. However, some species show dietary flexibility; for instance, Meroles anchietae individuals in the Namib Desert have been observed to specialize in eating seeds, and others consume plant matter. Reproductive strategies within the family are also diverse. At least eight species from the Caucasus region are parthenogenetic, meaning they reproduce asexually. Furthermore, three species, including the viviparous lizard (Zootoca vivipara), give birth to live young instead of laying eggs.
Source: Wikipedia ↗
Frequently Asked Questions
What are the main habitats for Lacertidae lizards?
European and Mediterranean lacertids are found mainly in forest and scrub habitats. In Asia, species like Eremias and Ophisops inhabit grasslands and deserts. African species typically reside in rocky, arid areas.
What is the typical size of a Lacertidae lizard?
Most species are small, with a body length of less than 9cm, not including the tail. The largest living species, Gallotia stehlini, can reach up to 46cm in length.
What do Lacertidae lizards eat?
They are primarily insectivorous. However, some species, like Meroles anchietae, have a more varied diet that can include plant matter and even seeds in desert environments.
Are there any unique reproductive methods within the Lacertidae family?
Yes, at least eight species from the Caucasus are parthenogenetic, meaning they reproduce without fertilization. Additionally, three species, including the viviparous lizard Zootoca vivipara, give birth to live young.
Where did the Lacertidae family originate?
Fossil evidence suggests that lacertids likely originated in Europe. The earliest fossils attributed to this family have been found in this region.
Related Lizards
Argentine giant tegu
The Argentine giant tegu (Salvator merianae), also known as the Argentine black and white tegu, is the largest species of tegu lizard, native to South America. These omnivorous reptiles inhabit tropical rainforests, savannas, and semi-deserts, and are notable for their intelligence, relatively gentle nature, and unique ability to exhibit partial endothermy during their breeding season. They are also a significant invasive species in parts of the United States.
Timon lepidus
The ocellated lizard (Timon lepidus), also known as the jewelled lizard, is a large species endemic to southwestern Europe. It is characterized by its robust build, serrated collar, and striking coloration, with males typically being brighter than females. This lizard inhabits a variety of dry, bushy environments and is an opportunistic omnivore.
Timon tangitanus
Timon tangitanus, also known as the Moroccan eyed lizard, is a species of lizard native to Northwest Africa. It is characterized by its green or brown body adorned with distinctive blue ocelli on its back. This lizard inhabits temperate forests, shrublands, and rocky areas, where it primarily feeds on invertebrates and fruits.