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404 hydrozoans species
Plumularia strictocarpa
Tridentata turbinata
Abylopsis tetragona
Aglaura hemistoma
Cordylophora caspia
Moerisia lyonsi
Rhacostoma atlanticum
Sertularella diaphana
Distichopora foliacea
Stylaster laevigatus
Sertularella speciosa
Scrippsia pacifica
Gymnangium montagui
Aglaophenia inconspicua
Gonothyraea loveni
Laomedea calceolifera
Obelia bidentata
Plumularia lagenifera
Abietinaria inconstans
Errinopora pourtalesii
Corymorpha nutans
Abietinaria rigida
Rhysia fletcheri
Symplectoscyphus turgidus
Tubularia regalis
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