Lumbricus

Taxobox
name = "Lumbricus"
image_width = 250px

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image_width = 250px
image_caption = "Lumbricus terrestris", the Common European Earthworm
regnum = Animalia
phylum = Annelida
classis = Clitellata
ordo = Haplotaxida
familia = Lumbricidae
genus = "Lumbricus"
genus_authority = Linnaeus, 1758
subdivision_ranks = Species
subdivision ="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 species of earthworms. The genus has 12 commonly accepted species. [cite web | url = http://bio-eco.eis.ynu.ac.jp/eng/database/earthworm/Lumbricidae.pdf| publisher = YNU| year = 2007 | title = Checklist of Lumbricidae, etc. | accessdate = 2008-05-26]

Commonly encountered species include "Lumbricus rubellus", "Lumbricus castaneus", "Lumbricus terrestris", and "Lumbricus festivus". There are some major differences between these four species of earthworms.
*"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