Class
Hydrozoa
696 species in this class. Browse scientific names and open each profile for distribution, taxonomy and available wildlife data.
Orders in Hydrozoa
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Families in Hydrozoa
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Species · page 1 of 12
sea fir
Abietinaria abietina
Sertulariidae
fern hydroid
Abietinaria filicula
SertulariidaeAbietinaria fusca
Abietinaria fusca
SertulariidaeAbietinaria gracilis
Abietinaria gracilis
SertulariidaeAbietinaria pulchra
Abietinaria pulchra
SertulariidaeAbietinaria rigida
Abietinaria rigida
SertulariidaeAbietinaria turgida
Abietinaria turgida
Sertulariidae
Abylopsis eschscholtzii
Abylopsis eschscholtzii
Abylidae
Abylopsis tetragona
Abylopsis tetragona
AbylidaeAcaulis primarius
Acaulis primarius
AcaulidaeAdelopora alveolata
Adelopora alveolata
StylasteridaeAdelopora robusta
Adelopora robusta
StylasteridaeAdelopora rosea
Adelopora rosea
StylasteridaeAdelopora stichopora
Adelopora stichopora
Stylasteridaegolf tee medusa
Aegina citrea
AeginidaeAegina rosea
Aegina rosea
Aeginidae
Aeginopsis laurentii
Aeginopsis laurentii
Solmundaeginidae
Aeginura grimaldii
Aeginura grimaldii
AeginidaeSouthern Crystal Jelly
Aequorea australis
AequoreidaeAequorea floridana
Aequorea floridana
Aequoreidae
many-ribbed jellyfish
Aequorea forskalea
AequoreidaeAequorea neocyanea
Aequorea neocyanea
AequoreidaeAequorea pensilis
Aequorea pensilis
AequoreidaeAequorea taiwanensis
Aequorea taiwanensis
Aequoreidae
water jellyfish
Aequorea victoria
Aequoreidae
Équorée de verre
Aequorea vitrina
AequoreidaeAgalma clausi
Agalma clausi
Agalmatidae
Agalma elegans
Agalma elegans
Agalmatidae
Agalma okenii
Agalma okenii
Agalmatidae
pink helmet
Aglantha digitale
RhopalonematidaeAglaophenia acacia
Aglaophenia acacia
Aglaopheniidae
Aglaophenia de San Diego
Aglaophenia diegensis
Aglaopheniidae
Aglaophénia allongée
Aglaophenia elongata
Aglaopheniidae
Aglaophénia à crochets
Aglaophenia harpago
Aglaopheniidae
Plume de Kirchenpauer
Aglaophenia kirchenpaueri
Aglaopheniidae
Feather Plume Hydroid
Aglaophenia latecarinata
Aglaopheniidae
Aglaophenia latirostris
Aglaophenia latirostris
AglaopheniidaeAglaophenia lophocarpa
Aglaophenia lophocarpa
Aglaopheniidae
Aglaophenia octodonta
Aglaophenia octodonta
AglaopheniidaeAglaophenia parvula
Aglaophenia parvula
Aglaopheniidae
podded hydroid
Aglaophenia pluma
AglaopheniidaeHydraire pomme de pin
Aglaophenia rhynchocarpa
Aglaopheniidae
ostrichplume hydroid
Aglaophenia struthionides
Aglaopheniidae
Aglaophenia tubiformis
Aglaophenia tubiformis
Aglaopheniidae
plume hydroid
Aglaophenia tubulifera
Aglaopheniidae
stinging hydroid
Aglaophenia whiteleggei
Aglaopheniidae
Aglaophenopsis cornuta
Aglaophenopsis cornuta
AglaopheniidaeAglaophenopsis hirsuta
Aglaophenopsis hirsuta
Aglaopheniidae
American pipit
Aglaura hemistoma
RhopalonematidaeAglauropsis aeora
Aglauropsis aeora
OlindiidaeAglauropsis conanti
Aglauropsis conanti
OlindiidaeAglauropsis kawari
Aglauropsis kawari
OlindiidaeAmphicaryon ernesti
Amphicaryon ernesti
Prayidae
Amphinema dinema
Amphinema dinema
Pandeidae
Amphinema rugosum
Amphinema rugosum
Pandeidae
Amphinema turrida
Amphinema turrida
PandeidaeAmphisbetia distans
Amphisbetia distans
Sertulariidae
Amphisbetia furcata
Amphisbetia furcata
Sertulariidae
tamaris de mer
Amphisbetia operculata
SertulariidaeAnnatiara affinis
Annatiara affinis
Pandeidae