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WoRMS Photogallery > Hydrozoa (hydroids)
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Family Agalmatidae: typical forms
Family Agalmatidae: typical forms
Craspedacusta sowerbii: Limnomedusae, Olindiasidae
Craspedacusta sowerbii: Limnomedusae, Olindiasidae
Rhopalonematidae, characterstics
Rhopalonematidae, characterstics
Ptychogastriidae, characteristics
Ptychogastriidae, characteristics
Petasidae, characteristics
Petasidae, characteristics
Halicreatidae
Halicreatidae
Geryoniidae, characteristics
Geryoniidae, characteristics
Haliscera conica: Trachymedusae
Haliscera conica: Trachymedusae
Tetraplatia volitans
Tetraplatia volitans
Pegantha clara (Narcomedusae, Solmarisidae)
Pegantha clara (Narcomedusae, Solmarisidae)
Cunina peregrina: Narcomedusae,  Cuninidae
Cunina peregrina: Narcomedusae, Cuninidae
Family Aeginidae: more stomach pouches  than tentacles
Family Aeginidae: more stomach pouches than tentacles
Narcomedusae: section through bell margin
Narcomedusae: section through bell margin
Narcomedusae: characteristics and specific terms
Narcomedusae: characteristics and specific terms
Family Armorhydridae: Genus Armorhydra
Family Armorhydridae: Genus Armorhydra
Family Monobrachiidae: Genus Monobrachium
Family Monobrachiidae: Genus Monobrachium
Family Microhydrulidae: longitudinal section through polyp (microscopic)
Family Microhydrulidae: longitudinal section through polyp (microscopi...
Family Olindiidae: Genus Craspedacusta
Family Olindiidae: Genus Craspedacusta
Limnomedusae: typical forms and terms
Limnomedusae: typical forms and terms
Family Otohydridae: typical form, red arrow points to brood-pouch
Family Otohydridae: typical form, red arrow points to brood-pouch
Halammohydridae: microscopic organisation
Halammohydridae: microscopic organisation
Halammohydridae: typical forms, red arrow points to mouth
Halammohydridae: typical forms, red arrow points to mouth
Cystonectae: typical representative, Physalia physalia
Cystonectae: typical representative, Physalia physalia
Calycophorae: typical forms
Calycophorae: typical forms
Suborder Physonectae
Suborder Physonectae
Tiaropsis multicirrata: hydrotheca and gonotheca
Tiaropsis multicirrata: hydrotheca and gonotheca
Family Tiarannidae: typical medusa and hydrotheca of polyp
Family Tiarannidae: typical medusa and hydrotheca of polyp
Thyroscyphus fruticosus
Thyroscyphus fruticosus
Family Teclaiidae: medusa of Teclaia
Family Teclaiidae: medusa of Teclaia
Family Sugiuridae: typical polyp and medusa
Family Sugiuridae: typical polyp and medusa
Family Sertulariidae Genus Sertularella
Family Sertulariidae Genus Sertularella
Aglaophenidae: typical representant
Aglaophenidae: typical representant
Family Kirchenpaueriidae: single plume, hydrothecae on branches, gonotheca
Family Kirchenpaueriidae: single plume, hydrothecae on branches, gonot...
Family Plumulariidae: typical forms
Family Plumulariidae: typical forms
Superfamily Plumularioidea: colony form and hydrothecae
Superfamily Plumularioidea: colony form and hydrothecae
Family Phialuciidae: medusa and polyp in hydrotheca, note spherical mouth region of polyp
Family Phialuciidae: medusa and polyp in hydrotheca, note spherical mo...
Family Phialellidae: medusa and part of polyp colony
Family Phialellidae: medusa and part of polyp colony
Family Orchistomatidae: medusa
Family Orchistomatidae: medusa
Family Octocannoidae: typical medusa
Family Octocannoidae: typical medusa
Family Mitrocomidae: hydrotheca, medusa and magnified bell-margin
Family Mitrocomidae: hydrotheca, medusa and magnified bell-margin

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