Lumbricus badensis

…is a species of giant Lumbricid earthworm, which is endemic to the upper-elevation spruce forests of Germany’s Black Forest. Reaching lengths of around 60 cm (24.6) in length L. badensis is one of the largest European species of earthworm. Like other smaller earthworms Lumbricus badensis tunnels underground (typically 2.5 m (8 ft) deep) and feeds on organic matter, aerating the soil and contributing to the formation of humus as it moves. 


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Image: Naturschutzzentrum Südschwarzwald


Lumbricus rubellus

Sometimes known as the “red earthworm”, Lumbricus rubellis is a species of earthworm that was originally native to Europe and the British Isles, but has been introduces worldwide. Like other earthworms L. rubellus lives in soils high in organic matter and is a saprophage, which feeds on organic material.


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Images: James K. Lindsey and Holger Casselmann


Redworm (Eisenia fetida)

Also known by many other common names such as brandling worm, trout worm, tiger worm, red wiggler worm, and the red Californian worm, Eisenia fetida is a species of Lumbricid earthworm that is native to Europe, but has been introduced to every other continent except Antarctica. Interestingly E. fetida are rarely found in soil instead preferring conditions that are harmful to other worms. And as such they thrive in rotting vegetation, compost and manure.

When handled (roughly) Eisenia fetida is capable of exuding a pungent liquid, which likely is an antipredator adaptation.


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Images: Mihai Duguleana and Hogler Casselmann