Important Facts About Annelida | Grey Worm


Definition: Two openings for food/waste, circulatory system

Description of where it lives: it is often found in the dirt
of the forest floor.

Common Name: Grey Worm
Kingdom: Animalia
Phylum: Annelida
Class: Clitellata
Order: Opisthopora
Family: Lumbricidae
Genus: Aporrectodea
Species: caliginosa
Important Key Facts About Annelida
  • There are about 12,400 species of annelid, all of which are vermiform, or soft bodied.

  • The repition of segments in annelid is called metamerism

  • Annelid segments are seperated by septa. Septa is defined as "a thin partition or membrane that divides two cavities or soft masses of tissue in an organism."

  • Most polycheate annelids have seperate sexes. (male and female)

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