Download Invertebrate Animal Chart

Invertebrate Chart
Phylum Name
Meaning/Common
Porifera
Pore-bearing
Cnidaria
Stinging cells
Platyhelminthes
Flatworm
Nematoda
Roundworms; little thread
Bath sponges; vase sponges;
tube sponges
Anemone; jellyfish; coral; hydra
Planaria; tapeworms; flukes
Hookworms; pinworms;
heartworms; filarial worms
absent
Two
Three
Three
asymmetrical
Radial
Bilateral
Bilateral
Cephalization
(if yes, list
structures)
Coelom
absent
absent
Present (eyespots; central
ganglion)
Present (head to tail)
absent
absent
Absent
Pseudocoelom
Early
none
none
Protostome
Protostome
Filter feeders
Gastrovascular cavity;
extracellular digestion; paralyzes
prey
Gastrovascular cavity
Scavengers; carnivores
Carnivores; grasp food with
mouth parts
Gastrovascular cavity; pharynx;
gut
Tube-within-a-tube; two
openings; one-way tract
None; diffusion
None; diffusion
None; diffusion
Diffusion through body wall
None; diffusion
None; diffusion
None; diffusion
None; diffusion
Diffusion by individual cells
Diffusion by individual cells
Flame cells
Diffusion
None
Nerve net
Ganglia; eyespots; nerve cord
Nerve ring; nerves that extend
length of body
Spicules
Hydrostatic pressure
Cilia; muscle cells
Hydrostatic skeleton;
longitudinal muscles
Sexual: hermaphrodites;
asexually (budding,
gemmules)
Sexual: hermaphrodites (external
fertilization); asexually
(budding)
Sexual: hermaphrodites;
asexually (regeneration)
Sexual: separate sexes; internal
fertilization
Name
Examples
(atleast 2)
# of
Germ Layers
Body
Symmetry
Development
Feeding
Method
Digestive
Structures
Respiratory
Choanocytes; intracellular
digestion
Structures
Circulatory System
(Open or Closed)
(also list structures)
Excretory
Structures
Nervous
Structures
Support
Structures
Reproduction
Method
& Fertilization
Phylum Name
Meaning/Common
Little ring
Annelida
Class Gastropoda
Stomach foot
2 shells
Class Bivalvia
Class Cephalopoda
Head-foot
Examples
Earthworms; leeches
Snails; slugs
Clams; mussels; oysters
(atleast 2)
# of
Octopus; squid; chambered
nautilus
Three
Three
Three
Three
Bilateral
Bilateral
Bilateral
Bilateral
Present
Present (brain; nerve cords;
ganglia)
Present (brain; nerve cords)
Present (brain; nerve cords)
True coelom
True coelom
True coelom
True coelom
Protostome
Protostome
Protostome
Protostome
Carnivores; scavengers
Use radula to scrape food
Filter feeders
Carnivores; hunt prey, capture
with tentacles
Mouth, pharynx, esophagus,
crop, gizzard, intestine, anus
(Many people eat chicken
gizzards in Atlanta)
Diffusion through skin
Radula; siphon; complete
digestive tract
Complete digestive tract
Complete digestive tract
Gills; skin
Gills
Gills
Closed; dorsal and ventral aorta;
five pumping “hearts”
Open; pumping heart
Open; pumping heart
Open; pumping heart
Nephridia
Nephridia; anus
Nephridia; anus
Nephridia; anus
Simple brain; nerve cord
Ganglia; nerve cords
Small ganglia; nerve cord;
eyespots
Highly developed brain
Hydrostatic skeleton;
longitudinal muscles; circular
muscles
Sexual: hermaphrodites; internal
fertilization
Muscular foot; shell
Muscular foot; 2 shells
Internal pen
Sexual: external fertilization
Sexual: external fertilization
Sexual: internal fertilization
Name
Germ Layers
Body
Symmetry
Cephalization
(if yes, list
structures)
Coelom
Early
Development
Feeding
Method
Digestive
Structures
Respiratory
Structures
Circulatory System
(Open or Closed)
(also list structures)
Excretory
Structures
Nervous
Structures
Support
Structures
Reproduction
Method
& Fertilization
Phylum Name
Meaning/Common
Class Insecta
Class Arachnida
Class Crustacea
Echinodermata
Spiny skin
To cut
Spider
Shell
Examples
Locust; grasshopper; ladybug
Spiders; mites; ticks; scorpions
Crayfish; lobster; shrimp
(atleast 2)
# of
Sea stars; sand dollars; sea
urchins
Three
Three
Three
Three
Bilateral
Bilateral
Bilateral
radial
Present (brain; nerve cords;
ganglia)
Present (brain; nerve cords)
Present (brain; nerve cords)
Absent
True coelom
True coelom
True coelom
True coelom
Protostome
Protostome
Protostome
Deuterostome
Mouth parts to ingest food
Fangs to paralyze prey; external
digestive
Chelipeds; mouthparts to
capture and eat prey
Tube feet; stomach
Complete digestive tract
Complete digestive tract;
chelicerae
Complete digestive tract
Stomach; digestive glands
Tracheae; spiracles
Book lungs
Gills
Skin gills; tube feet
Open; pumping heart
Open; pumping heart
Open; pumping heart
Water vascular system; diffusion
Malpighian tubules; anus
Malpighian tubules; anus
Green glands
Anus; skin gills
Brain; complex and simple eyes;
ganglia
Brain; complex eyes; ganglia
Brain; ganglia
Nerve ring; radial nerves;
sensory cells
Exoskeleton; muscles
Exoskeleton; muscles
Exoskeleton; muscles
Hydrostatic skeleton; water
vascular system
Sexual: internal fertilization
Sexual: internal fertilization
Sexual: internal fertilization
Sexual: external fertilization;
separate sexes
Asexual: regeneration
Name
Germ Layers
Body
Symmetry
Cephalization
(if yes, list
structures)
Coelom
Early
Development
Feeding
Method
Digestive
Structures
Respiratory
Structures
Circulatory System
(Open or Closed)
(also list structures)
Excretory
Structures
Nervous
Structures
Support
Structures
Reproduction
Method
& Fertilization