The Smooth Snake, Coronella austriaca, is a harmless species of colubrid snake found in northern Europe, but also as far east as northern Iran. They can be found in England, France, Spain, Portugal, Germany, Denmark, Norway, and Sweden. They are also found in Switzerland, Austria, Italy, Greece, and European Russia. In Asia, they are found in Turkey, Azerbaijan, Georgia, Armenia and northern Iran.
Both sexes grow to an average length of 20 inches. However it is not unheard of that these specimens have reached lengths of up to 36 inches. The color pattern consists of brown, gray or reddish ground color with two rows of small, rather indistinct dark spots running down the back towards the tail. In some cases, each pair of spots may be united toward the neck area, forming a series of cross-bars over the back. There is also a very indistinct series of dark spots running along each of the flanks.
Dorsally, the head has somewhat heart-shaped markings that resembles an inverted V. This shape is where the name Coronella comes from, which means coronet (a small crown). A relatively thick dark stripe extends from the nostril along the side of the head to a little beyond the neck, only being interrupted by the eye. The upper labials are whitish, grayish-white or light brown, sometimes with darker spots. The tongue is reddish brown or dark red.