Order Siphonophorae

• Polymorphic species
• Mostly Pelagic which means that they are for open water only and are far from the shore.
•  Feeds on Zooplankton and small fish.
•  This is where Physalia was classified.
•  Highly colonial
• Suborders:

  • Physonectae
  • Calycophorae
  • Cystonectae
• Identify parts:

  A) pneumatophore

  B) nectophore

  C) stem

  D) bract

  E) palpon with filiform tentacle

  F) gastrozooid

  G) tentillae

  H) tentacle of gastrozoid

  I) medusoid gonophores