Animal Classes

Insecta

CLASS (Arthropoda) 3 segment body, 3 pairs of legs. Insects.

Chilopoda

CLASS (Arthropoda) A single pair of elongated legs, insect-like. Centipede

Crustacea

CLASS (Arthropoda) Crabs, Shrimp, Lobsters, Crayfish, invertebrate, segmented body

Arachnida

CLASS (Arthropoda) cold blooded, 8 jointed legs. Spider

Asterodea

CLASS (Echidodermata) Star shaped body plan. Body around central disk

Echidodea

CLASS (Echidodermata) Tightly interlocking plate skeleton, sand dollar

Holithuriudea

CLASS (Echinodermata) arms, branched tentacle, bilaterally symmetrical, sea cucumber.

Bivalve

CLASS (Mollusca) Clams, oysters, hinged at back, teeth+size determine

Gastropoda

CLASS (Mollusca) Snails and slugs

Cephalopoda

CLASS (Mollusca) predatorry mollusks, symmetrical, tentacles, saltwater, octopus and squid

Reptilia

CLASS Cold blood, lays eggs, scales. Snake, aligator

Mammalia

CLASS Dont lay eggs, keratin hair

Amphibia

CLASS Larvae aquatic and gills. Older have lungs and glandular skin. Semi-terrestrial. Four legs

Osteichthyes

CLASS bony fish. skeleton of bone, breathe through gills.

Aves

CLASS wings, feathers, egg-layers.

Chondrichthyes

Cartilage fish

Mollusca

PHYLUM )Bilaterally symmetrical. 2)Body has more than two cell layers, tissues and organs. 3)Body without cavity.

Arthropoda

PHYLUM Spiders Crabs Lobsters Scorpions Insects segmented body covered by chitin exoskeleton. Any animals that have more than four, jointed legs

Echinodermata

PHYLUM Starfish, radial symmetry, suction, no heart brains eyes

Annelida

PHYLUM invertebrates, segmented body, no lungs

Chordata

PHYLUM spine

Cnidaria

PHYLUM stinging cells, mostly carnivorous, life cycle like plants

Platyhelminthes

PHYLUM. Soft body, bilateral symmetry

Porifera

PHYLUM; filter water through pores