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Helix pomatia

life science Maturity 7-9 Next article →

The Roman snail, known scientifically as *Helix pomatia*, is a large land snail.

Helix pomatia MHNT.ZOO.2002.0.33
Helix pomatia MHNT.ZOO.2002.0.33

It is also called the Burgundy snail or escargot. This species is a stylommatophoran, which means it is an air-breathing land snail. These snails are important to both nature and humans. They are a well-known edible species. They are often found in areas where people live, a habit called synanthropy.

SnailMeeting
SnailMeeting

They play a role in their ecosystems through their feeding habits and life cycles.

The snail's body is protected by a globular brown shell.

Helix pomatia MHNT.ZOO.2002.0.33
Helix pomatia MHNT.ZOO.2002.0.33

This shell can be creamy white or light brown. It often has brown color bands that may be very clear. The shell features five to six whorls, which are the spiral turns of the shell. The opening of the shell is called the aperture. In adult snails, the margin of this aperture is slightly reflected. The shell also has a narrow umbilicus, which is a small indentation. To survive harsh seasons, the snail can perform estivation or hibernation. During these periods, it creates a calcareous epiphragm. This is a hard seal made of calcium that closes the shell opening. This seal protects the snail from drying out in summer or freezing in winter.

Reproduction in *Helix pomatia* follows a specific biological process. These snails are hermaphroditic, meaning they possess both male and female reproductive organs. In Central Europe, the breeding season typically begins at the end of May. During June and July, the snails lay eggs in clutches. Each clutch usually contains between 40 and 65 eggs. These eggs measure approximately 5.5 to 6.5 mm or 8.6 by 7.2 mm.

Vinbergssnäcka lägger ägg
Vinbergssnäcka lägger ägg

After three to four weeks, the juveniles hatch. In some cases, if the climate is unfavorable, juveniles may consume their siblings. It takes two to five years for a snail to reach maturity.

The distribution of this species is quite wide across Europe. Their natural range extends from eastern France to western Russia. They can be found in northern Italy, Bulgaria, and parts of the Balkans. In Great Britain, they live on chalk soils in southern and western England.

They have also been introduced to the eastern United States and Canada. Some isolated populations even exist as far east as Novosibirsk. Human movement and synanthropic occurrences have helped spread them to new areas. This includes scattered populations in northern Spain and parts of Scandinavia.

Life expectancy for the Roman snail varies based on the environment. While they can live up to 20 years in the wild, many die sooner. Common causes of death include drying out during summer or freezing in winter. However, the maximum lifespan for this species can reach 35 years. Ten-year-old individuals are considered not uncommon in natural populations. In Germany, young snails show a specific preference for feeding on the nettle, *Urtica dioica*. These biological details help scientists understand how the species persists in different climates.

Humans have a long history with *Helix pomatia*. Ancient Romans used to eat these snails. Today, they are a famous part of French cuisine.

Cooked snails
Cooked snails

In the English language, the French word "escargot" is used when they are cooked. This word simply means snail. Despite being highly prized as food, they are difficult to cultivate. Because of this, they are rarely farmed on a commercial scale. Many people still rely on collecting them from the wild.

Because of their use in food, many countries have laws to protect them. The species is listed as "Least Concern" on the IUCN Red List. However, habitat destruction and drainage pose constant threats. In Great Britain, the Wildlife and Countryside Act 1981 protects them in England. This makes it illegal to kill, injure, collect, or sell them. Other countries have specific rules, such as France, which prohibits collecting certain sizes. In Denmark, commercial collecting is prohibited. These laws help manage the impact of harvesting on free-living populations.

Helix pomatia eye microscopical
Helix pomatia eye microscopical
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🖼️ Images & Media (6)
File:Helix-pomatia Presence in European countries.png
Helix-pomatia Presence in European countries.png
File:SnailMeeting.jpg
SnailMeeting.jpg
File:Helix pomatia eye microscopical.jpg
Helix pomatia eye microscopical.jpg
File:Helix pomatia MHNT.ZOO.2002.0.33.jpg
Helix pomatia MHNT.ZOO.2002.0.33.jpg
File:Vinbergssnäcka lägger ägg.jpg
Vinbergssnäcka lägger ägg.jpg
File:Cooked snails.JPG
Cooked snails.JPG
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