Lumbricus

Lumbricus
Lumbricus terrestris, the Common European Earthworm
Scientific classification
Kingdom: Animalia Phylum: Annelida Class: Clitellata Order: Haplotaxida Family: Lumbricidae Genus: Lumbricus Linnaeus, 1758
Species
Lumbricus badensis Lumbricus baicalensis Lumbricus castaneus Lumbricus centralis Lumbricus festivus Lumbricus friendi Lumbricus improvisus Lumbricus klarae Lumbricus meliboeus Lumbricus polyphemus Lumbricus rubellus Lumbricus terrestris Lumbricus variegatus

Lumbricus contains some of the most commonly seen earthworms in Europe. The genus has nearly 700 valid species.^[1]

Characteristics of some commonly encountered species are:

• Lumbricus rubellus is usually reddish brown or reddish violet, iridescent dorsally, and pale yellow ventrally. They are usually about 25–105 mm in length, and have around 95-120 segments.

• Lumbricus castaneus varies from chesnut to violet brown; brown or yellow ventrally, and have orange clitellum. They are usually about 30–70 mm, and have around 82–100 segments.

• Lumbricus terrestris has several common names, including Common Earthworm, also "nightcrawler" and "dew worm". They are strongly pigmented, brown-red dorsally, and yellowish ventrally. Setae is widely paired both ends of the body. It is the largest species in the genus, about 90–300 mm long, and have around 110–160 segments.

• Lumbricus festivus are not found in large numbers. They are red-brown, lighter ventrally, iridescent dorsally. Their bodies' lengths vary from 48–108 mm, and they have about 100–143 segments.

• Lumbricus badensis, the Giant Earthworm, also belongs to this genus. Its range is restricted to the Black Forest area of south-western Germany.

See also

• Earthworm

References

1. ^ "Checklist of Lumbricidae, etc.". YNU. 2007. http://bio-eco.eis.ynu.ac.jp/eng/database/earthworm/Lumbricidae.pdf. Retrieved 2008-05-26.