several types of annelids
Annelids range from giant earthworms to smallest worms in size. The biggest annelids reported so far is the Michrochaetus rappi which measure about 1.36 m and the smallest annelids is the Chaetogaster annandalai which measures 0.5 mm. There are many types of worms in the group annelids. They include earthworms, flatworms, and roundworms. The worms can be measure in the range of about an inch to several inches long. The worms like ribbon worms have the ability to grow about 100 ft in length.