👉 The operids belong to the order Annelidae, which includes worms, slugs, snails, and slugs. They are characterized by their long, thin bodies with a segmented body outline and a series of segments called the cephalothorax.
👉 The operids belong to the order Annelidae, which includes worms, slugs, snails, and slugs. They are characterized by their long, thin bodies with a segmented body outline and a series of segments called the cephalothorax.
