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Size and appearance Lumbricus rubellus, or the ' red earthworm', ranges from 25 millimetres (0.98 in) to 105 millimetres (4.1 in) in length and has smooth, reddish, semi-transparent, flexible skin segmented into circular sections.

Its range is restricted to the Black Forest area of southwestern Germany. ⁕Lumbricus badensis, the giant earthworm, also belongs to this genus. The body length varies from 48–108 mm, with about 100–143 segments. It is red-brown, lighter ventrally, iridescent dorsally. ⁕Lumbricus festivus is not found in large numbers. It is the largest species in the genus, about 90–300 mm long, and has around 110–160 segments.

Setae are widely paired at both ends of the body. It is strongly pigmented, brown-red dorsally, and yellowish ventrally. ⁕Lumbricus terrestris has several common names, including common earthworm, nightcrawler, and dew worm. They are usually about 30–70 mm long, and have around 82–100 segments. ⁕Lumbricus castaneus varies from chesnut to violet brown brown or yellow ventrally, and has an orange clitellum. They are usually about 25–105 mm in length, and have around 95-120 segments. Characteristics of some commonly encountered species are: ⁕Lumbricus rubellus is usually reddish brown or reddish violet, iridescent dorsally, and pale yellow ventrally.

Lumbricus Lumbricus contains some of the most commonly seen earthworms in Europe.

PDF to Word API Contact us.įreebase (0.00 / 0 votes) Rate this definition: To convert your PDF into DOCX please upload it: PDF related Tools and maybe help you. Upload your file and let our converter do the work for you! Your file will be converted into DOCX format. Online PDF to DOCX Converter: Convert PDF to DOCX. These and other species of Lumbricus can be distinguished by external features, such as the position of the clitellum, position and form of the tubercula pubertatis and other genital markings, size. Castaneus (Savigny, 1826) overlap in body size, the latter being usually smaller and having a darker, browner pigmentation.

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