Thecate Hydroids
Leptothecata
Leptomedusae or Leptomedusa, commonly called thecate hydroids, are a cnidarian order in the subclass Leptolinae. They were formerly placed at suborder rank in the paraphyletic "Hydroida". Their closest living relatives, according to the modern view, are the Anthomedusae which are similar enough to have always been considered closely related, and the very apomorphic Siphonophora which were placed outside the "Hydroida". Given that there are no firm rules for synonymy for high-ranked taxa, alternative names like Leptothecata,...
35 branches of this order, most-observed first
Plume and Feathery Hydroids
superfamilyPlumularioidea
Many-ribbed Jellies
familyAequoreidae
Sertularioidea
superfamilySertularioidea
Campanulariidae
familyCampanulariidae
Mitrocomidae
familyMitrocomidae
Eirenidae
familyEirenidae
Lovenellidae
familyLovenellidae
Laodiceidae
familyLaodiceidae
Haleciidae
familyHaleciidae
Melicertidae
familyMelicertidae
Tiaropsidae
familyTiaropsidae
Lafoeidae
familyLafoeidae
Symplectoscyphidae
familySymplectoscyphidae
Syntheciidae
familySyntheciidae
Dipleurosomatidae
familyDipleurosomatidae
Phialellidae
familyPhialellidae
Hebellidae
familyHebellidae
Tiarannidae
familyTiarannidae
Campanulinidae
familyCampanulinidae
Zygophylacidae
familyZygophylacidae
Orchistomatidae
familyOrchistomatidae
Blackfordiidae
familyBlackfordiidae
Malagazziidae
familyMalagazziidae
Cirrholoveniidae
familyCirrholoveniidae
Barcinidae
familyBarcinidae
Bonneviellidae
familyBonneviellidae
Lineolariidae
familyLineolariidae
Octocannoididae
familyOctocannoididae
Staurothecidae
familyStaurothecidae
Sugiuridae
familySugiuridae
Teclaiidae
familyTeclaiidae
Clathrozoidae
familyClathrozoidae
Gonaxiidae
familyGonaxiidae
Wuvulidae
familyWuvulidae
Phialuciidae
familyPhialuciidae
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Leptothecata in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 48925.