Sandworms Centipedes Leeches Hydra Classification
Sandworms taxonomically belong to the phylum Annelida, class Polychaeta, order Vaginata, family Sandworms, commonly known as sea worms, sea maggots, sea centipedes, sea locusts. Leeches taxonomically belong to the phylum Annelida, class Polychaeta, order Vaginae, family Leecidae. Hydra taxonomically belongs to the phylum Cnidaria, class Hydrozoa, order Hydra, family Hydra. Centipedes belong to the phylum Annelida, class Labiatae, family Centipede.