Download invertebrate summary chart

INVERTEBRATE SUMMARY CHART
PHYLUM
PORIFERA
CLASS
CNIDARIA
COMMON NAME
Sponge
Jellyfish
Corals
Hydras
PLATYHELMINTHES
Trematoda
Flatworms
(blood flukes)
PLATYHELMINTHES
Cestoda
Flatworms
(tapeworms)
NEMATODA
ANNALIDA
Oligochaetes
ANNALIDA
Hirudinea
MOLLUSCA
muscular foot
a visceral mass
a mantle
usually separate sexes
open circulatory system
with a heart and
hemolymph
Gastropods
(Most numerous of
Mollusca)
Roundworms
pinworms and
hookworms
segmented worms
(earthworms)
segmented worms
(leeches)
snails and slugs
CHARACTERISTICS
no symmetry
sessile
porous body
choanocytes
suspension feeders
hermaphrodites
radial symmetry
cnidocytes
Polyps
medusa
cnidae
gastrovascular cavity
suckers
gastrovascular cavity
need intermediate host
scolex
suckers or hooks
lack a gastrovascular cavity
proglottids
cuticle
most widespread of all animals
reproduction is sexual
eating undercooked pork
sparse bristles
hermaphrodites
hirudin
used for blood-letting
Many snails are hermaphrodites.
single, spiral shaped shell
distinct head with eyes at the tips
of its tentacles
Radula for a tongue
Can be poisonous hunters
BIOTECH PRODUCTS
antibiotics
anti-cancer agents
unbreakable glass
Dissolve blood clots
MOLLUSCA
Bivalves
clams, oysters,
muscles, and
scallops
MOLLUSCA
Cephalopods
octopuses and squid
ARTHROPODA
hard exoskeleton and
jointed appendages
specialized segments
open circulatory system
heart and hemolymph
ARTHROPODA
Cheliceriforms
sea spiders
horseshoe crabs
Arachnids
(scorpions, spiders,
ticks, and mites)
Myriapods
ARTHROPODA
Insects
millipedes
(herbivores) and
centipedes
(carnivores)
Dragonflies
Bees
Beetles
Butterflies
Crickets
ARTHROPODA
Crustaceans
ECHINODERMATA
Crabs
Lobsters
Crayfish
Shrimp and krill
Barnacles
Starfish, brittle stars,
sea urchins, sand
dollars, sea
cucumbers
shell divided into two halves
no distinct head
no radula
suspension feeders
active predators
immobilizing poison
closed circulatory system,
well developed sense organs,
complex brain.
chelicerae are pinchers or fangs.
Adhesives
Synthetic webs
Venom is pesticide, brain
cancer medicine
terrestrial
large number of legs
centipedes are poisonous
Rare in the ocean
Wings in addition to all their
walking legs
metamorphosis
larval and pupal stages
sexual reproduction, using bright
colors, sound, odors
Found in the ocean
branched appendages that are
extensively specialized and can
be regenerated
water vascular system
Krill are fertilizer
Barnacle cement