Earthworm

Earthworm - Surendran. K [email protected] Phylum...

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Unformatted text preview: Surendran. K [email protected] Phylum : Annelida Class : Oligochaeta Genus : Megascolex Species : mauritii NEGATIVELY PHOTOTACTIC NOCTURNAL LOCOMOTION BURROWING FEEDING BREEDING REGENERATION Earthworms are terrestrial animals inhabiting the moist soil. They are usually found in the upper layer of soil to a depth of 30-40cm. They are nocturnal and in day time they live in the burrows.During rainy season they come out and crawl on the ground. During winter they close the burrows by leaves and debris. This is to warm the burrows. Their presence is marked by the occurrence of worm cast, the faecal deposit of earthworm. There are about 500 species of earthworm. Of which 13 are found in India. Common varieties are Pheretima and Lumbricus A fully grown earthworm measures about 150mm in length and 3-5mm width The body is cylindrical and elongated. The anterior end is pointed , while the posterior end is rounded.rounded....
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This note was uploaded on 11/23/2011 for the course BIO 100 taught by Professor Robinson during the Fall '08 term at BYU.

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Earthworm - Surendran. K [email protected] Phylum...

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