Prostomium
- a tongue-like lobe above the mouth
- used as a sensory device since earthworms do not have a nose, eyes, ears, or limbs
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| http://www.naturewatch.ca/english/wormwatch/resources/anatomy.html |
Peristomium
- first body segment
- contains the mouth
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| http://www.naturewatch.ca/english/wormwatch/resources/anatomy.html |
Clitellum
- distinct swelling called about one-third of the way down the earthworm.
- often white or orange in colour
- produces most of the material secreted to form earthworm cocoons
- only found on adult worms
- glandular swellings located on both sides of the clitellum
- only found on adult worms
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| http://www.naturewatch.ca/english/wormwatch/resources/anatomy.html |
Genital Tumescences (GT)
- areas of modified epidermis (skin) that do not have distinct boundaries
- openings through which follicles of genital setae open
- pattern and location of the GT are important clues to identifying different species of earthworms
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| http://www.naturewatch.ca/english/wormwatch/resources/anatomy.html |
Epidermis
- outter layer (skin)
- secretes a mucous
