Class
Hydrozoa
696 species in this class. Browse scientific names and open each profile for distribution, taxonomy and available wildlife data.
Species · page 10 of 12
Ptychogastria polaris
Ptychogastria polaris
PtychogastriidaePtychogena crocea
Ptychogena crocea
LaodiceidaePtychogena hyperborea
Ptychogena hyperborea
Laodiceidae
Ptychogena lactea
Ptychogena lactea
Laodiceidae
Pyrostephos vanhoeffeni
Pyrostephos vanhoeffeni
Pyrostephidae
Solitary Gorgonian Hydroid
Ralpharia gorgoniae
Tubulariidae
Rathkea octopunctata
Rathkea octopunctata
RathkeidaeResomia ornicephala
Resomia ornicephala
Resomiidae
Lined Water Jelly
Rhacostoma atlanticum
Aequoreidae
horsetail hydroid
Rhizocaulus verticillatus
CampanulariidaeRhizogeton nudus
Rhizogeton nudus
Oceaniidae
Rhizophysa eysenhardtii
Rhizophysa eysenhardtii
Rhizophysidae
Rhizophyse filiforme
Rhizophysa filiformis
Rhizophysidae
Rhizorhagium roseum
Rhizorhagium roseum
Bougainvilliidaeveiled medusa
Rhopalonema velatum
Rhopalonematidae
Rosacea cymbiformis
Rosacea cymbiformis
PrayidaeRosacea plicata
Rosacea plicata
PrayidaeSalacia desmoides
Salacia desmoides
SertulariidaeSamuraia tabularasa
Samuraia tabularasa
HydrocorynidaeSarsia bella
Sarsia bella
CorynidaeSarsia lovenii
Sarsia lovenii
Corynidae
Sarsia princeps
Sarsia princeps
CorynidaeSarsia striata
Sarsia striata
Corynidae
clapper hydroid
Sarsia tubulosa
CorynidaeSarsia viridis
Sarsia viridis
Corynidae
Schizotricha frutescens
Schizotricha frutescens
SchizotrichidaeSchuchertinia allmanii
Schuchertinia allmanii
Hydractiniidae
Miller hydractinia
Schuchertinia milleri
HydractiniidaeScolionema suvaense
Scolionema suvaense
Olindiidae
Giant Bell Jelly
Scrippsia pacifica
CorynidaeSertularella coronata
Sertularella coronata
Sertularellidae
Sertularelle blanche
Sertularella crassicaulis
Sertularellidae
Hydraire-duvet rose
Sertularella diaphana
Sertularellidae
Sertularella ellisii
Sertularella ellisii
SertularellidaeSertularella gaudichaudi
Sertularella gaudichaudi
Sertularellidae
Sertulaire de Gay
Sertularella gayi
Sertularellidae
Sertularelle de Méditerranée
Sertularella mediterranea
SertularellidaeSertularella pacifica
Sertularella pacifica
Sertularellidae
great tooth hydroid
Sertularella polyzonias
Sertularellidae
snail trefoil hydroid
Sertularella rugosa
Sertularellidae
Sertularella tenella
Sertularella tenella
Sertularellidae
squirrel's tail
Sertularia argentea
Sertulariidae
Squirrel's-tail Hydroid
Sertularia cupressina
SertulariidaeSertularia dalli
Sertularia dalli
SertulariidaeSertularia fabricii
Sertularia fabricii
SertulariidaeSertularia robusta
Sertularia robusta
SertulariidaeSertularia tenera
Sertularia tenera
Sertulariidae
Silicularia rosea
Silicularia rosea
CampanulariidaeSimiliclava nivea
Similiclava nivea
Similiclavidae
Slabberia halterata
Slabberia halterata
CorynidaeSeafan Hydroid
Solanderia gracilis
Solanderiidae
Solanderia secunda
Solanderia secunda
Solanderiidae
Solmaris corona
Solmaris corona
SolmarisidaeSolmaris flavofinis
Solmaris flavofinis
Solmarisidae
Solmissus
Solmissus albescens
CuninidaeSolmissus bleekii
Solmissus bleekii
Cuninidae
Solmissus incisa
Solmissus incisa
Cuninidaedinner plate medusa
Solmissus marshalli
Cuninidae
Solmundaegina nematophora
Solmundaegina nematophora
Solmundaeginidae
Solmundella bitentaculata
Solmundella bitentaculata
Solmundaeginidae