ClassArticulata		Phylum Echinodermata, "Brittle Stars", most diverse, smaller than starfish, no ambulacral groove, bursal sacs
SuperOrderEiphausiacea		Phylum Arthropoda, Subphylum Crustacea, "Krill", marine, filter feeders, highest number in Anartica
ClassInsecta		"Phorons" all marine, worm-like, U-shaped gut
ClassAscidiacea		"Moss Animals", Colonial, sessiles, mostly marine, polymorphic zooids in colony, no circulatory, no excretory, no respiratory
ClassChilopoda		"Arrow Worms", planktonic, active predators, hermaphroditic
ClassInarticulata		Phylum Chordata, Subphylum Urochordata, "Sea Squirts", sessile, colonial marine
ClassOphiuroidea		Phylum Bryozoa, all marine species, circular lophophore, polymorhpic, chitonious zooecium
PhylumBrachiopoda		Phylum Echinodermata, "Sea Lilies", oldest, most primative group, sessile and deep water, ossicles form stalk
ClassHolothuroidea		Subphylum Uniramia, segmented, uniramous appendages, terrestial and cryptics
ClassEchinoidea		Phylum Arthropoda, Subphylum Uniramia, 750,000 species, spiracles for respiration, flight
ClassEnteropheusta		Phylum Hemichordata, primative, worm-like, live in deep water in Sounthern Hemisphere
ClassCrinoidea		Phylum Echinodermata, "Sea Cucumbers", greatly prolonged, 5 rows of tube feet, deposit feeders, internal madroporite
ClassDiplopoda		Phylum Arthropoda, Subphylum Uniramia, "Millipedes", posses diplosegments and repugnantoral glands for defense
PhylumSipuncula		"Peanut Worms", all benthic marine, detritous feeders, no gass echange or circulatory system,similar to Annelids
MyriapodousArthropods		Phylum Bryozoa, non-polymorphic, all freshwater, U-shaped lophophore, gelatinous colony, most primative
PhylumPhoronia		Phylum Arthropoda, Subphylum Crustacea, Class Malacostraca, mostly marine, well developed abdomen, 8 segments
ClassAsteroidea		"Velvet Worms", very ancient group, living fossils, mostly tropical areas, internal segmentation
ClassPhylactolaemata		Phylum Arthropoda, Subphylum Uniramia, "Centipedes", active predators, scretes poison with maxillpedes
ClassPterobranch		"Spiny-Skinned", 3 compartment coelom, pentamerous radial symmetry, internal skeleton, water vascular system
PhylumEchinodermata		Phylum Brachiopoda, incomplete digestive tract, CaCO3 shell, Terebratella
PhylumOnychophora		Phylum Hemichordata, "Acorn Worms", live in mud flats and are deposit feeders
PhlyumChaetognatha		Phylum Echinodermata, "Starfish", oral surface faces down,
ClassGymnodaemata		Phylum Brachiopoda, valves held by muscles, complete digestive tract, CaPO4 shells, Lingula
OrderDecapoda		Phylum Echinodermata, "Sea Urchins", globular shapes, fused ossicles, spines for defense
PhylumBryozoa		"Lamp Shells", all marine, ancient group with 2 compartmental coelom