What phylum and Class is it in

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What phylum and Class is it in?
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Phylum MolluscaClass Gastropoda
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Phylum MolluscaClass Cephalopoda

• Cuttlefishes similar to squids anatomy and
  swimming capabilities. 
• The difference cuttlefishes have a small, curved
  shell covered by the mantle (the cuttlebone often
  seen in bird cages) whereas squids have a
  vestigial skeleton consisting of a curved
  plastic-like support called a pen.

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Phylum MolluscaClass Bivalvia

• Latin  bitwo   -  two plates (Two halves to the
  shell)  

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Phylum MolluscaClass Cephalopoda
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Phylum MolluscaClass Gastropoda
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Phylum MolluscaClass Gastropoda

• conch (pronounced "konk" (IPA /k??k/) or "konch"
  (IPA /k?nt?/))
• a sea-dwelling mollusk, more specifically, a
  marine gastropod.
• note that many other gastropods have common names
  using conch, such as the Horse Conch (Pleuroploca
  gigantea).

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Phylum MolluscaClass Bivalvia

• The name oyster is used for a number of different
  groups of mollusks which grow for the most part
  in marine or brackish water.
• The shell, usually highly calcified, surrounds a
  soft body.
• Gills filter plankton
• Strong adductor muscles hold the shell closed.
  Some of these groups are highly prized as food,
  both raw and cooked

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Phylum Annelida

• Giant Gippsland earthworm (Megascolides
  australis), is one of the most fascinating of
  Australia's 1000 native earthworm species.
  average at 80 cm long and 2 cm in diameter.
• dark purple head and a pinkish-grey body.
• live in the subsoil along stream banks and some
  south or west facing hills of their remaining
  habitat in Victoria, Australia.
• Live in deep burrow systems and require water in
  their environment to respire.
• rarely leave their moist burrows.
• Long lifespans for invertebrates and can take 5
  years to reach maturity. When these worms hatch
  they are already 20 cm long.
• They can sometimes be heard in their habitat
  making gurgling sounds underground.