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 About the Phylum
Annelida The word
"Annelida" comes from the Latin annelus,
or ringed. Earthworms and leeches, plus many
other kinds of segmented worms, are included in
this phylum. |
 Common
Earthworm (Lumbricus
terrestris),
also known as the night crawler, may
be up to 10 inches long. Earthworms move an
incredible amount of soil as they burrow and
feed. There may be as many as 3 million
earthworms per acre of soil, and it has been
estimated that 7½ to 18 tons of soil can be
thrown up by earthworms per acre per year. |
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