What is a worm's class?

Worms belong to various classes within the phylum Annelida, which includes segmented worms like earthworms and leeches. Earthworms are classified under the class Clitellata, while leeches belong to the subclass Hirudinea within Clitellata. Other types of worms, such as roundworms, are found in the phylum Nematoda, which is distinct from annelids. Overall, the term "worm" encompasses a diverse range of organisms across different phyla and classes.