Phylum

• Arthropoda

  Jointed-foot invertebrates: arachnids; crustaceans; insects; millipedes; centipedes.

• Nematoda

  Unsegmented worms: roundworms; threadworms; eelworms.

• Chordata

  Comprises true vertebrates and animals having a notochord.

• Mollusca

  Gastropods; bivalves; cephalopods; chitons.

• Echinodermata

  Radially symmetrical marine invertebrates including e.g. starfish and sea urchins...

• Ctenophora

  Comb jellies; sea acorns; a small phylum formerly considered a class of Coelenterata.

• Platyhelminthes

  Flatworms.

• Annelida

  Segmented worms: earthworms; lugworms; leeches.

• Chaetognatha

  Arrowworms: a group of small active transparent marine worms.

• Bryozoa

  Marine or freshwater animals that form colonies of zooids.

• Acanthocephala

  Phylum or class of elongated wormlike parasites that live in the intestines of vertebrates:...

• Nemertea

  Proboscis worms.

• Pogonophora

  Beard worms.

• Rotifera

  A phylum including: rotifers.

• Phoronida

  Small phylum of wormlike marine animals.

• Cycliophora

  Tiny marine organisms each the size of a period found in great numbers on lobsters'...

• Brachiopoda

  Marine invertebrates that resemble mollusks.

• Sipuncula

  Peanut worms.

Family

• arthropod family

  Any of the arthropods.

• mollusk family

  A family of mollusks.

• worm family

  A family of worms.

• ctenophore family

  A family of ctenophores.

• echinoderm family

  A family of echinoderms.

• coelenterate family

  A family of coelenterates.

Genus

• arthropod genus

  A genus of arthropods.

• mollusk genus

  A genus of mollusks.

• worm genus

  A genus of worms.

• coelenterate genus

  A genus of coelenterates.

• echinoderm genus

  A genus of echinoderms.

• ctenophore genus

  A genus of ctenophores.

Subkingdom

• Metazoa

  Multicellular animals having cells differentiated into tissues and organs and usually a...

• Parazoa

  Multicellular organisms having less-specialized cells than in the Metazoa; comprises the...

Also contains

• animal order

  The order of animals.

• animal

  A living organism characterized by voluntary movement.