Hydra viridissima Pallas, 1766
(Green Hydra)

Taxonomic hierarchy:
SpeciesHydra viridissima (Green Hydra)
GenusHydra (hydras)
FamilyHYDRIDAE (freshwater hydras)
SuborderAPLANULATA (a suborder of coelenterates)
OrderANTHOATHECATA (an order of hydroids)
SubclassHYDROIDOLINA (a subclass of coelenterates)
ClassHYDROZOA (hydroids)
PhylumCNIDARIA (hydroids, jelly fish, sea anemones, jellyfish)
SubkingdomEUMETAZOA (metazoans)
KingdomANIMALIA (animals)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Hydra viridissima (Green Hydra) :
1: Hydra viridissima (Green Hydra)
13 Mar 2018 OSGR: SU00 50° 50’ N, 1° 60’ W Vice County: Dorset (VC 9) England
in aquarium, filled from garden pond
Image 1: Animal - partially extended - highly enlarged - silver backgroundImage 2: Animal - partially extended - highly enlarged - silver background (2)Image 3: Animal - partially extended - highly enlarged - silver background (3)
2: Hydra viridissima (Green Hydra)
22 May 2000 OSGR: SU56 51° 30’ N, 1° 10’ W Vice County: Berks (VC 22) England
kept for a few days and photographed on 25th
Image 1: Animal - extendedImage 2: Animal - extended (2)Image 3: Animal - part extendedImage 4: Animal - part extended (2)Image 5: Animal - part extended (3)Image 6: Cone of mouth region (above tentacles)Image 7: Cone of mouth region (above tentacles) (2)Image 8: Foot - magnifiedImage 9: Trunk - magnifiedImage 10: Upper part of animalImage 11: Upper region and tentaclesImage 12: Upper region and tentacles (2)
3: Hydra viridissima (Green Hydra)
1 May 1978 OSGR: SU93 51° 10’ N, 0° 40’ W Vice County: Surrey (VC 17) England
in pond
Image 1: Fully extended - magnifiedImage 2: Fully extended - magnified (2)Image 3: Hanging from surface film - magnifiedImage 4: Hanging from surface film - magnified (2)Image 5: Hanging from surface film - magnified (3)Image 6: Hanging from surface film - magnified (4)Image 7: Looking into mouth - magnifiedImage 8: On leaf - magnifiedImage 9: On leaf - magnified (2)Image 10: On leaf - magnified (3)Image 11: On surface film - magnified
4: Hydra viridissima (Green Hydra)
13 Feb 1978 OSGR: SU83 51° 0’ N, 0° 40’ W Vice County: Surrey (VC 17) England
Image 1: Hanging on surface film - magnifiedImage 2: Upper portion of animal - magnifiedImage 3: Upper portion of animal - magnified (2)

Hydra viridissima (Green Hydra) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Hydra viridissima (Green Hydra)
BioInfoBioInfo (www.bioinfo.org.uk) has 0 host/parasite/foodplant and/or other relationships for Hydra viridissima (Green Hydra)
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