This document discusses the classification of earthworms. It describes how earthworms can be classified based on their habitat, the soil layers they inhabit, their behavior, feeding habits, food sources, and place of living. Some key classifications include surface-dwelling versus deep-dwelling worms, litter-layer versus topsoil versus subsoil species, humus farmers versus humus feeders, pigmented versus less pigmented feeders, and classifications based on habitats like epigeic, endogeic, or anecic forms. Examples are given for some classifications like Eisenia fetida, Lumbricus rubellus, Pontoscolex corethrurus, and Lumbricus terrestris.

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۞Nightcrawlers,dewworm.
۞Bilaterallysymmetrical.
۞Setae.
۞liveinburrows.

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۞Wrigglingmovement.
۞Nocturnal.
۞Phytophagous,GeophagousandGeophytophagous.
۞Omnivores.

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Vermiculture Biotechnology
۞Breedduringrainyseason.
۞Coldblooded/Poikilothermal
۞Hermaphrodites.
۞Cocoon
۞Lifespan–3years

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Vermiculture Biotechnology
۞Deepbrowntolightbrown–hormone(Porphyrin)
۞100–120segments-Septa
۞ChemoreceptorsandPhytoreceptors
۞Clitellum

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Classification of Earthworm
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Based on habitat
Based on the soil layers
Based on behaviour
Based on the habits
Based on the food materials
Based on place of living
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Based on Habitat
۞Surfacedwellingworms
۞Deepdwellingworms

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Based on Soil layers
۞Litterspecies
۞Topsoilspecies
۞Subsoilspecies

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Based on behavior
۞Humusfarmers
۞Humusfeeders

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Based on feeding Habits
۞Pigmented,Littlefeeders
۞Lesspigmented,Topsoilfeeders
۞Lespigmented,Humusfeeders

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Based on food materials
۞Polyhumic
۞Mesohumic
۞Oligohumic

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Based on place of living
۞Nightcrawlers
۞Fieldworms
۞Manureworms
۞Palouseworms

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Based on Habitats
۞Epigeicforms
۞Endogeicforms
۞Anecicforms

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Upon the earth Hide below leaf litter
Phytophagous Homochromic
Eisenia fetida Lumbricus rubellus

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Within the earth Horizontal branched
burrows
Sluggish movement Geophagous
Pontoscolex corethrurus Polypheretima elongata

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Out of the earth Vertical burrows
Sensitive to light Geophytophagous
Lumbricus terrestris Aporrectodea longa

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