Annelida
one.
Phylum Nemertea.
it is Phylum Annelida.
Annelida phylum
Annelida
An arrow worm is a variety of marine worm of the phylum Chaetognatha.
As the earth worm, fan worms are in phylum Annelida.
Phylum Echinodermata
There are far too many invertebrate species to list. Note that there are far more invertebrate species than vertebrate species. However, I here are a list of invertebrate phyla: Acanthocephala (a phylum of worm) Acoelomorpha (a phylum of worm) Annelida (a phylum of worm) Arthropoda (spiders, crabs, etc) Brachiopoda Bryozoa Chaetognatha (a phylum of worm) Cnidaria (corals, sea anemones, jellyfish, etc) Ctenophora (comb jellies) Cycliophora Echinodermata (sea urchins, starfish, etc) Echiura (a phylum of worm) Entoprocta (a phylum of worm) Gastrotricha Gnathostomulida (a phylum of worm) Hemichordata (a phylum of worm) Kinorhyncha Loricifera Micrognathozoa Mollusca (octopi, clams, etc) Nematoda (a phylum of worm) Nematomorpha (a phylum of worm) Nemertea (a phylum of worm) Onychophora (a phylum of worm) Orthonectida Phoronida (a phylum of worm) Placozoa Platyhelminthes (flat worms) Porifera (sponges) Priapulida Rhombozoa Rotifera Sipuncula Tardigrada (Water bears, which are microscopic animals that live in and eat moss. They look like caterpillars). Xenoturbellida (strange flatworm)
treatment for sand worm
defenetly not i believe they are under the phylum of analids
Platyhelminthes(tape worm)