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404 hydrozoans species
Polyorchis haplus
Hydra hymanae
Amphinema dinema
Eucheilota bakeri
Stylaster erubescens
Kirchenpaueria halecioides
Sertularella albida
Stylaster duchassaingi
Eudendrium arbuscula
Rhopalonema velatum
Kirchenpaueria pinnata
Zancleopsis dichotoma
Euphysa aurata
Thyroscyphus ramosus
Tubularia regalis
Halecium pusillum
Aglaophenia latirostris
Symplectoscyphus turgidus
Rhysia fletcheri
Pegantha triloba
Abietinaria rigida
Vallentinia gabriellae
Antennella avalonia
Corymorpha nutans
Cubaia aphrodite
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