Garden Snail or White Garden Snail
Phylum: Mollusca, Class: Gastropoda, Order: Stylommatophora, Family: Helicidae, Genus: Cornu, Species: Cornu aspersum · Helicidae (Typical Garden Snail family) · Gastropod (land snail / univalve), whole spiral shell
Species
Cornu aspersum
Shell Type
Gastropod (land snail / univalve), whole spiral shell
Family
Helicidae (Typical Garden Snail family)
Size
Approximately 1 inch (25-35 mm) in diameter, which is typical for an adult of this species.
Color & Pattern
Off-white to pale cream base, heavily sun-bleached, though faint traces of darker brownish or yellowish banding or mottled markings may occasionally be found near the apex in fresh specimens. This specific shell is uniformly chalky white due to sun exposure and weathering.
Rarity
Very Common, frequently found in gardens, yards, and agricultural areas worldwide.
Habitat
Terrestrial habitats, including gardens, agricultural fields, woodlands, and urban areas. Prefers damp, humid environments with abundant vegetation and calcium sources.
Geographic Range
Originally native to the Mediterranean region and Western Europe, but now widely distributed globally as an introduced species across North America, South America, Australia, and parts of Asia.
Description
A globular, low-spired terrestrial gastropod shell featuring approximately four to five rapidly expanding whorls. The surface exhibits fine, delicate growth lines and microscopic spiral striations. The suture is well-impressed, leading to a prominent, slightly elevated spire. The overall texture is relatively fragile, and the specimen shows a weathered, sun-bleached white appearance.
Key Features
Globular depressed-conic shape, low spire, roughly 4 to 5 whorls, finely striated growth lines, and an absence of a strong columellar fold.
Collector Value
Low commercial or collector value, as they are extremely common worldwide. They are typically collected by amateur naturalists or children rather than advanced conchologists.
Condition Notes
Weathered and sun-bleached white with complete structural integrity of the whorls. No living animal inside; standard empty shell find. Collectibility grade is Fair due to fading and lack of natural pigmentation.
Interesting Facts
Cornu aspersum (formerly known as Helix aspersa) is a well-known agricultural pest in many parts of the world. Despite this, they are also farmed commercially for culinary use, notably in French cuisine as escargot. They are hermaphroditic and can retract deeply into their shells during periods of drought or cold.
Ecological Role
Serves as an important food source for many birds, small mammals, amphibians, and reptiles. They act as generalist herbivores and detritivores, breaking down decaying plant matter, though they can become destructive pests to crops and garden plants.
Similar Species
Cepaea nemoralis (Grove Snail) and Theba pisana (White Garden Snail), which can be distinguished by specific color banding patterns, slightly different aperture shapes, or geographic variations.
Beach Finding Tips
Not found on beaches; instead, search terrestrial gardens, under rocks, near moisture-rich vegetation, or along walls during early mornings or after rainfall.