Other identification tools | SeaLifeBase

Non-fish Identification: Find Species

Family: Hydridae (See list of species below)

Select Ocean (marine/brackish) or Continent (freshwater):

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Total number of spines in dorsal and anal fins (optional)



12 species with fin ray counts including ? spines in dorsal and ? in anal fins (see list below)
No picture found

Chlorohydra hadleyi
[]
No picture found

Chlorohydra viridissima
[green hydra]
No picture found

Hydra americana
[white hydra]
No picture found

Hydra canadensis
[Alberta hydra]
No picture found

Hydra cauliculata
[]
No picture found

Hydra hymanae
[Jersey hydra]
No picture found

Hydra littoralis
[swiftwater hydra]
No picture found

Hydra minima
[]
No picture found

Hydra oligactis
[brown hydra]
No picture found

Hydra oregona
[Oregon hydra]
No picture found

Hydra pseudoligactis
[false brown hydra]
No picture found

Hydra rutgersensis
[]
12 Species of Family Hydridae
()
Sort by: Species Length
Scientific Name English Name Distribution Max. Length (cm)
Chlorohydra hadleyi North America.
Chlorohydra viridissima green hydra North America.
Hydra americana white hydra North America.
Hydra canadensis Alberta hydra North America.
Hydra cauliculata North America.
Hydra hymanae Jersey hydra North America.
Hydra littoralis swiftwater hydra North America.
Hydra minima North America.
Hydra oligactis brown hydra North America.
Hydra oregona Oregon hydra North America.
Hydra pseudoligactis false brown hydra North America.
Hydra rutgersensis North America.



Other identification tools in SeaLifeBase


Quick Identification
Identification keys
Identification by morphometrics
Identification by pictures:
          If you already know the Family, go to Search SeaLifeBase, select Family and click on 'Identification by pictures' to display all available pictures in SeaLifeBase for the family.

          If you already know the Country, go to
Search SeaLifeBase, select Country and click on 'Identification by pictures' to display all available pictures in SeaLifeBase for the country.

          If you already know the Ecosystem, go to
Search SeaLifeBase, select Ecosystem and click on 'Identification by pictures' to display all available pictures in SeaLifeBase for the ecosystem.
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