How to draw earthworm Pheretima posthuma practical zoology

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__________________________________________ • Classification • Kingdom : Animalia • Phylum : Annelida • Class : Clitellata • Subclass : Oligochaeta • Order : Opisthopora • Family : Megascolecidae • Genus : Pheretima • Species : posthuma • __________________________________________ • Comments • 1. It is terrestrial and burrowing in habit. • 2. Body bilaterally symmetrical, triploblastic and metamerically segmented. • 3. Body is not differentiated into head or appendage but a distinct prostomium is present. • 4. Clitellumis present in segments 14-16. • 5. Single female opening is present in 14th segment, paired male openings in 18th segment and paired genital papillae in the 17th and 19th segment. • 6. Anus terminal. • 7. The setae are buried in the body-wall all over the surface. • 8. It is hermaphrodite and reproduction is sexual and is followed by a cocoon formation. • 9. Coelom is distinct, spacious and coelomic fluid contains coelomic corpuscles. • #Annelida

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