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Hydrozoa feathered hydroid or feather hydroid, sea-nettle (Pennaria disticha) undersea, Ligurian Sea, Italy, Imperia

Hydrozoa feathered hydroid or feather hydroid, sea-nettle (Pennaria disticha) undersea, Ligurian Sea, Italy, Imperia

Hydra is a genus of small, fresh-water animals of the phylum Cnidaria and class Hydrozoa under the microscope for education.

close up of delicate looking hydroids known as Oaten Pipe Hydroids

close up of delicate hydroids known as Club headed Hydroids

dense groups of colonial hydroids commonly known as Oaten Pipe Hydroids growing on a reef wall amongst Plumose Anemones

close up of a fine hydroid known as Sickle Hydroid or Coral Moss

close up of delicate hydroids known as Club headed Hydroids

dense groups of colonial hydroids commonly known as Oaten Pipe Hydroids growing on a reef wall amongst Plumose Anemones

close up of delicate looking hydroids known as Oaten Pipe Hydroids

a small cluster of hydroids known as Bottle Brush Hydroids

dense groups of colonial hydroids commonly known as Oaten Pipe Hydroids growing on a reef wall amongst Plumose Anemones

dense groups of colonial hydroids commonly known as Oaten Pipe Hydroids growing on a reef wall amongst Plumose Anemones

dense groups of colonial hydroids commonly known as Oaten Pipe Hydroids growing on a reef wall amongst Plumose Anemones

close up of a cluster of tiny colonial hydroids known as Club headed Hydroid growing on sea weed

close up of a Skeleton or Ghost Shrimp on a hydroid known as a Bottle brush Hydroid

White Feather Hydroids Hydrozoa and Padina Pavonica Algae on Underwater Rocky Reef

close up of a dense cluster of colonial hydroids known as Oaten Pipe Hydroids

MEDITERRANEAN SEA, U.W. photo; a colony of hydroids at night (FILM SCAN)

close up of a dense cluster of colonial hydroids known as Oaten Pipe Hydroids

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