Cnidarians
JJ Wright & Jack Weidenbach
Home
Groups/Divisions of Cnidarians
Anthozoa
>
Sea fans
Corals
Sea pens
Sea anemones
Cubozoa
>
Chironex fleckeri
Tripedalia cystophora
Catostylus mosaicus
Hydrozoa
>
Athecate Hydroids
Thecate Hydroids
Siphonophores
Scyphozoa
>
Helmet Jelly
Lion's Mane Jellyfish
Moon Jelly
Reproductive Habits and Development
Body plan/symmetry
Tissues, organs and cell specialization
Feeding mechanisms and digestion.
Body coverings/skin
Respiration
Circulation
Excretion
Locomotion/Appendages
Skeleton and musculature
Nervous system control
Life history/fossil record
Ecological/economical importance
Bibliography
Nervous system control
Nicer Web
Cnidarians nervous system mostly consists of a nerve net.
The nerve net sends nervous signals to the
jellyfish to contract the muscles around the bell to make it
swim and let sea anemones contract when touched. (Daily Kos)