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WoRMS Photogallery > Hydrozoa (hydroids)
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Family Rhizophysidae
Family Rhizophysidae
Family Physaliidae: Genus Physalia
Family Physaliidae: Genus Physalia
Family Sphaeronectidae
Family Sphaeronectidae
Family Prayidae
Family Prayidae
Family Hippopodiidae: typical representative
Family Hippopodiidae: typical representative
Family Diphyidae: typical representatives
Family Diphyidae: typical representatives
Family Clausophyidae: upper and lower swimming bell, arrows point to somatocysts
Family Clausophyidae: upper and lower swimming bell, arrows point to s...
Family Abylidae
Family Abylidae
Family Rhodaliidae: typical forms
Family Rhodaliidae: typical forms
Family Pyrostephidae
Family Pyrostephidae
Family Physophoridae: Physophora hydrostatica
Family Physophoridae: Physophora hydrostatica
Family Forskaliidae: typical form
Family Forskaliidae: typical form
Family Apolemiidae: typical form
Family Apolemiidae: typical form
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

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