![]() ![]() Organic matter in the soil serves as its food. during dry season in search of water.Įarthworm eats its way into the soil to excavate a burrow. Burrows are usually 20-30 cm deep but may reach 2-3 mtrs. Pheretima posthuma is the most common species.Įarthworm is nocturnal and lives in burrows in damp soil rich in humus. Thirteen of these species found in India. Largest genus is Pheretima that includes 500 species, widespread in tropical and temperate regions of the world. About 40 species of earthworms are found in India. Bahl (1926)Įarthworms has cosmopolitan distribution, with around 1800 species placed under several genera. Phylum – Annelida Class – Oligochaeta Order : Opisthopora Family – Megascolecidae Genus – Pheretima Species – posthuma.ĭetailed anatomy by Prof. ![]()
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