Hydroid Photos

Unidentified likely hydroid, filtering nutrients from passing ocean currents, oil rigs, southern California.
Image ID: 35078  

Purple hydrocoral Stylaster californicus and yellow zoanthid anemone Epizoanthus giveni, and clusters of hydroids, Farnsworth Banks, Catalina Island.
Species: Hydrocoral, Givens Zoanthid, Allopora californica, Stylaster californicus, Epizoanthus giveni
Location: Catalina Island, California
Image ID: 37223  

Velella, By The Wind Sailor, colonial hydroid, adrift on the ocean surface.
Species: By the wind sailor, Velella velella
Image ID: 30162  

Hedgehog hydroid cluster.
Species: Hedgehog hydroid, Hydractinia milleri
Location: San Miguel Island, California
Image ID: 01036  

Kelp fronds covered with hydroids.
Location: Catalina Island, California
Image ID: 40524  

Stinging hydroids, Sea of Cortez.
Location: Isla Las Animas, Baja California, Mexico
Image ID: 33684  

Stinging hydroids, Sea of Cortez.
Location: Isla Las Animas, Baja California, Mexico
Image ID: 33685  

Velella, By The Wind Sailor, colonial hydroid, adrift on the ocean surface.
Species: By the wind sailor, Velella velella
Image ID: 30161  

Kelp fronds covered with hydroids.
Species: Giant kelp, Macrocystis pyrifera
Location: San Clemente Island, California
Image ID: 38526  

Unidentified (hydroids?).
Location: Cousins, Galapagos Islands, Ecuador
Image ID: 16424  

Unidentified (hydroids?).
Location: Cousins, Galapagos Islands, Ecuador
Image ID: 16425  

Ostrich-plumed hydroid, Ensenada.
Species: Ostrich-plumed hydroid, Aglaophenia struthionides
Image ID: 02541  

Hedgehog hydroid cluster.
Species: Hedgehog hydroid, Hydractinia milleri
Location: San Miguel Island, California
Image ID: 05370  

By-the-wind-sailor hydroid colony, open ocean.
Species: By the wind sailor, Velella velella
Location: San Diego, California
Image ID: 06216  

By-the-wind-sailor hydroid colony, open ocean.
Species: By the wind sailor, Velella velella
Location: San Diego, California
Image ID: 06218  

Hedgehog hydroid cluster.
Species: Hedgehog hydroid, Hydractinia milleri
Location: San Miguel Island, California
Image ID: 07012