Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:15Public Records:2
Specimens with Sequences:14Public Species:1
Specimens with Barcodes:14Public BINs:1
Species:2         
Species With Barcodes:2         
          
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Barcode data

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Anguis

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Wikipedia

Anguis

Anguis, or the slow worm, is a small genus of lizards in the family Anguidae. It has two described species.

Description[edit]

Slow worms are typically grey-brown, with the females having a coppery sheen and two lateral black stripes, and the males displaying electric blue spots, particularly in the breeding season. They give birth to live young; the young are about 4 cm (1.6 in) long at birth and generally have golden stripes.

As their name indicates, slow worms are slow moving and can be easily caught. Like many lizards, slow worms can shed their tails to distract predators. The tail regrows, but never fully.[2] Principal predators are birds, badgers, hedgehogs, foxes and domestic cats.[3][4][5]

Slow worms may grow up to 30 cm long and 100g in weight, and may live for 20 or 30 years in the wild.[4][5]

Morphology[edit]

Although they are lizards, slow worms have lost their limbs completely and are often mistaken for snakes. Slow worms typically grow to between 40 and 50 cm (16 and 20 in), with the females slightly larger than the males. The tail makes up around half of its length, but is indistinguishable from the body.

Slow worms can be distinguished from snakes by several features: their eyelids, which snakes lack entirely; their small ear openings which again snakes lack; and their tongues, which are notched in the centre rather than completely forked like a snake's.

Habitat[edit]

Slow worms live in any habitat that is warm and protected such as woodland, grassland and heathland; they are frequently found in garden compost heaps.[5] They range across most of Europe, and into parts of Asia, but they are restricted to temperate and humid habitats. They hibernate from October to February/March, both communally and solitarily, and sometimes share hibernating sites with other reptiles.

Diet[edit]

Slow worms have grooved teeth which allow them to grab and swallow whole their soft invertebrate prey, such as slugs, hairless caterpillars and other insects, spiders and earthworms.[6] Snails are usually avoided, except when they are still very young and the shell can be broken easily.

Protected status[edit]

They are protected in the United Kingdom and Poland.

Classification[edit]

Subfamily Anguinae

References[edit]

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