What is the Biggest Slug in the Whole World?

The Ash-black Slug (Limax cinereoniger) is recognized as the largest land slug in the world.

The World's Largest Land Slug: The Ash-black Slug

The Ash-black Slug, scientifically known as Limax cinereoniger, holds the distinction of being the largest land slug globally. This remarkable gastropod can reach impressive sizes, with recorded lengths of up to 25 centimeters (approximately 10 inches). While most individuals typically measure between 10 and 20 centimeters, larger specimens have been observed.

Key Characteristics and Habitat

Ash-black Slugs are native to Europe and are commonly found in woodlands, gardens, and other damp environments that provide ample moisture for their movement and survival. Their name derives from their characteristic dark grey or black coloration, often complemented by a lighter-colored sole.

These nocturnal creatures play a crucial role in their ecosystems as decomposers. They primarily feed on decaying plant material, fungi, and occasionally other slugs, contributing to nutrient cycling within their habitats.

Fascinating Facts About the Ash-black Slug

The substantial size of the Ash-black Slug sets it apart from many other common slug species and allows it to efficiently traverse its environment in search of food and suitable conditions.

Here is a summary of key information about this impressive mollusc:

It is important to specify that the Ash-black Slug holds the title for the largest land slug. While there are diverse and often much larger species of sea slugs (nudibranchs), they exist in a different ecological niche and are distinct from terrestrial slugs. The Ash-black Slug's record pertains specifically to the terrestrial environment.