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Species Identification

In the United Kingdom we have 12 naturally occuring or native species, 6 amphibians and 6 reptiles. Evidence is mounting that a 13th species, the Pool Frog, was once a native of Norfolk.

There are a number of introduced species, naturalised in the wider countryside. Some introduced species may pose a threat to native wildlife, these are listed separately.

Use these pages to identify a lizard, snake, toad, frog or newt seen in the wild or to learn more about the herpetofauna of the British Isles.

 

Slow-Worm (Anguis fragilis)
Slow worm (Anguis fragilis)

Anguis fragilis, or slow worm, slow-worm, slowworm, blindworm or blind worm, is a limbless reptile native to Eurasia. Slow-worms are semi-fossorial (burrowing) lizards spending…

Adder (Vipera berus) - Basking
Adder (Vipera berus)

Vipera berus, the European adder or Northern viper, is a venomous viper species that is widespread and can be found throughout most of Western Europe and…

Bullfrog tadpole - found in Essex 2006
North American Bullfrog (Rana catesbeiana)

Identification This is a very large aquatic frog distinguishable from the introduced European species by lack of dorsal lateral fold, a very large eardrum and the vocal sac being beneath the chin…

Palmate newt (Lissotriton helveticus)

Tailed Amphibian-Smooth velvety skin Dorsal surface and flanks, Females - yellowish to olive brown, with dark freckling. Males - Olive brown, spotted and marbled with darker colours which may fuse to form…

Toads crossing road in Little Leighs, Chelmsford
Common toad (Bufo bufo)

Identification  Tailless amphibian. Warty Skin. Distinct bulges on back of head, known as the parotoid glands Tends to walk not jump Covered in obvious warts Horizontal slit pupil yellow/golden…

Common frog Rana temporaria
Common frog (Rana temporaria)

Identification A tailless amphibian with a smooth skin which tends to jump rather than walk. The pupil of the eye is horizontal ovoid, its dorsal surface (back) and flanks are very variable in colour -…

Viviparous lizard - Basking
Viviparous lizard (Zootoca vivipara)

The viviparous lizard or common lizard (Zootoca vivipara) is a Eurasian lizard. It lives farther north than any other reptile species, and most populations are viviparous (giving…

Smooth snake (Coronella austriaca)
Smooth snake (Coronella austriaca)

The Smooth snake (Coronella austriaca) is a harmless colubrid species found in northern and central Europe, but also as far east as northern Iran.

Grass Snake (Natrix natrix) - Head
Grass Snake (Natrix natrix)

The Grass Snake (Natrix natrix), sometimes called the Ringed Snake or Water Snake is a European non-venomous snake. It is often found near water and feeds almost…