Sea wasp, Chironex fleckeri "Small box jellyfish (Chironex fleckeri, possibly yamaguchii)" by Gautsch. via Flickr, Creative Commons Attribution ShareAlike.	Portuguese Man o' War, Physalia physalis Andreas Schwind via Flickr, Creative Commons Attribution.
Cotylorhiza tuberculata Rubund Creative Commons Attribution ShareAlike.	Phyllorhiza punctata Rubund Creative Commons Attribution ShareAlike.
Lion's mane jellyfish, Cyanea capillata Arnstein_Rønning via Wikicommons, Creative Commons Attribution.	Chrysaora melanaster Rubund Creative Commons Attribution ShareAlike.
Moon jelly, Aurelia aurita Rubund Creative Commons Attribution ShareAlike.

Taxonomy:

Class Cubozoa

Ord. Carybdeida (Add)

Fam. Alatinidae (Add)
Fam. Carukiidae (Add)
Fam. Carybdeidae (Add)
Fam. Tamoyidae (Add)
Fam. Tripedaliidae (Add)

Ord. Chirodropida

Fam. Chirodropidae

Gen. Chirodectes (Add)

Chirodectes maculatus (Add)

Gen. Chirodropus (Add)

Chirodropus gorilla (Add)
Chirodropus palmatus (Add)

Gen. Chironex (Add)

Sea wasp, Chironex fleckeri

Chironex yamaguchii (Add)

Gen. Chiropsella (Add)

Chiropsella bart (Add)
Chiropsella bronzie (Add)

Gen. Chirosoides (Add)

Chirosoides buitendijkl (Add)

Fam. Chiropsalmidae (Add)

Gen. Chiropsalmus (Add)

Chiropsalmus alipes (Add)
Chiropsalmus quadrigatus (Add)
Four-handed box jellyfish, Chiropsalmus quadrumanus (Add)
Chiropsalmus zygonema (Add)

Class Hydrozoa

S.Class Leptolinae (Hydroidolina)

Ord. Anthoathecata, Anthomedusae (Add)

Capitata (Add)
Filifera (Add)

Fam. Oceaniidae

Gen. Turritopsis (Add)

Turritopsis nutricula (Add)

Ord. Leptomedusae (Add)

Conica (Add)

Ord. Siphonophorae

Calycophorae (Add)

Fam. Abylidae (Add)
Fam. Clausophyidae (Add)
Fam. Diphyidae (Add)
Fam. Hippopodiidae (Add)
Fam. Prayidae

Gen. Praya (Add)

Praya dubia (Add)

Fam. Sphaeronectidae (Add)

Cystonectae (Add)

Fam. Physaliidae

Gen. Physalia (Add)

Portuguese Man o' War, Physalia physalis

Physalia utriculus (Add)

Fam. Rhizophysidae (Add)

Physonectae (Add)

Fam. Agalmatidae

Gen. Agalma (Add)
Gen. Cordagalma (Add)
Gen. Erenna (Add)
Gen. Frillagalma (Add)
Gen. Halistemma (Add)
Gen. Lychnagalma (Add)
Gen. Marrus (Add)

Marrus antarcticus (Add)
Marrus claudanielis (Add)
Marrus orthocanna (Add)
Marrus orthocannoides (Add)

Gen. Marrus (Add)
Gen. Resomia (Add)
Gen. Rudjakovia (Add)
Gen. Stephanomia (Add)

Fam. Apolemiidae (Add)
Fam. Athorybiidae (Add)
Fam. Erennidae (Add)
Fam. Forskaliidae (Add)
Fam. Physophoridae (Add)
Fam. Pyrostephidae (Add)
Fam. Rhodaliidae (Add)

S.Class Trachylina (Add)

Ord. Actinulida (Add)
Ord. Limnomedusae (Add)

Fam. Olindiasidae

Gen. Craspedacusta (Add)

Craspedacusta sowerbyi (Add)

Gen. Olindias (Add)

Flower hat jelly, Olindias formosa

Ord. Narcomedusae (Add)
Ord. Trachymedusae (Add)

Class Scyphozoa

Ord. Crown jellyfish, Coronatae

Fam. Atollidae (Add)
Fam. Atorellidae (Add)

Gen. Atorella (Add)
Gen. Stephanoscyphus (Add)

Stephanoscyphus mirabilis (Add)

Fam. Linuchidae (Add)

Gen. Linantha (Add)

Linantha lunulata (Add)

Gen. Linuche (Add)

Linuche aquila (Add)
Linuche unguiculata (Add)

Fam. Nausithoidae (Add)

Gen. Nausithoe (Add)

Nausithoe albatrossi (Add)
Nausithoe atlantica (Add)
Nausithoe aurea (Add)
Nausithoe challengeri (Add)
Nausithoe clausi (Add)
Nausithoe eumedusoides (Add)
Nausithoe globifera (Add)
Nausithoe hagenbecki (Add)
Nausithoe limpida (Add)
Nausithoe maculata (Add)
Nausithoe marginata (Add)
Nausithoe picta (Add)
Nausithoe planulophorus (Add)
Nausithoe punctata (Add)
Nausithoe racemosa (Add)
Nausithoe rubra (Add)
Nausithoe sorbei (Add)
Nausithoe thieli (Add)
Nausithoe werneri (Add)

Gen. Palephyra (Add)

Palephyra antiqua (Add)
Palephyra indica (Add)
Palephyra pelagica (Add)

Gen. Thecoscyphus (Add)

Thecoscyphus zibrowii (Add)

Fam. Paraphyllinidae (Add)
Fam. Periphyllidae (Add)

Gen. Nauphantopsis (Add)

Nauphantopsis diomedeae (Add)

Gen. Pericolpa (Add)

Pericolpa campana (Add)
Pericolpa quadrigata (Add)

Gen. Periphylla (Add)

Periphylla periphylla (Add)

Gen. Periphyllopsis (Add)

Periphyllopsis braueri (Add)
Periphyllopsis galatheae (Add)

Ord. Rhizostomeae

Fam. Archirhizidae (Add)

Gen. Archirhiza (Add)

Archirhiza aurosa (Add)
Archirhiza primordialis (Add)

Gen. Cannorhiza (Add)

Cannorhiza connexa (Add)

Fam. Cassiopeidae (Add)
Fam. Catostylidae (Add)
Fam. Cepheidae (Add)

Gen. Cephea (Add)

Cephea cephea (Add)

Gen. Cotylorhiza (Add)

Cotylorhiza tuberculata

Gen. Netrostoma (Add)
Gen. Polyrhiza (Add)

Fam. Lobonematidae (Add)
Fam. Lychnorhizidae (Add)
Fam. Mastigiidae (Add)

Gen. Mastigias (Add)

Mastigias papua (Add)

Gen. Phyllorhiza (Add)

Phyllorhiza punctata

Fam. Rhizostomatidae (Add)

Gen. Rhizostoma (Add)

Rhizostoma luteum (Add)
Rhizostoma octopus (Add)
Rhizostoma pulmo (Add)

Gen. Rhopilema (Add)

Rhopilema esculentum (Add)
Rhopilema hispidum (Add)
Rhopilema nomadica (Add)
Rhopilema rhopalophora (Add)
Rhopilema rhopalophorum (Add)
Rhopilema verrilli (Add)

Fam. Stomolophidae (Add)

Gen. Eupilema (Add)
Gen. Nemopilema (Add)

Nomura's jellyfish, Nemopilema nomurai (Add)

Gen. Stomolophus (Add)

Stomolophus fritillaris (Add)
Stomolophus meleagris (Add)

Ord. Semaeostomeae

Fam. Cyaneidae

Gen. Cyanea (Add)

Cyanea annasethe (Add)
Cyanea annaskala (Add)
Cyanea buitendijki (Add)
Lion's mane jellyfish, Cyanea capillata

Cyanea citrae (Add)
Cyanea ferruginea (Add)
Cyanea fulva (Add)
Blue jellyfish, Cyanea lamarckii (Add)
Cyanea mjobergi (Add)
Cyanea muellerianthe (Add)
Cyanea nozakii (Add)
Cyanea postelsi (Add)
Cyanea purpurea (Add)
Cyanea rosea (Add)

Gen. Desmonema (Add)

Desmonema chierchianum (Add)
Desmonema comatum (Add)
Desmonema gaudichaudi (Add)
Desmonema glaciale (Add)
Desmonema scoresbyanna (Add)

Fam. Drymonematidae (Add)

Gen. Drymonema (Add)

Drymonema dalmatinum (Add)
Drymonema gorgo (Add)
Drymonema larsoni (Add)

Fam. Pelagiidae (Add)

Gen. Chrysaora (Add)

Chrysaora achlyos (Add)
Chrysaora caliparea (Add)
Chrysaora chinensis (Add)
Chrysaora colorata (Add)
Chrysaora fulgida (Add)
Chrysaora fuscescens (Add)
Chrysaora hysoscella (Add)
Chrysaora kynthia (Add)
Chrysaora lactea (Add)
Chrysaora melanaster

Chrysaora pacifica (Add)
Chrysaora pentastoma (Add)
Chrysaora plocamia (Add)
Chrysaora quinquecirrha (Add)
Chrysaora wurlerra (Add)

Gen. Pelagia (Add)

Pelagia colorata (Add)
Pelagia noctiluca (Add)
Pelagia panopyra (Add)
Pelagia perla (Add)

Gen. Sanderia (Add)

Sanderia malayensis (Add)
Sanderia pampinosus (Add)

Fam. Phacellophoridae (Add)
Fam. Ulmaridae

Gen. Aurelia (Add)

Moon jelly, Aurelia aurita

Aurelia colpata (Add)
Aurelia labiata (Add)
Aurelia limbata (Add)
Aurelia maldivensis (Add)
Aurelia solida (Add)

Gen. Aurosa (Add)
Gen. Deepstaria (Add)
Gen. Discomedusa (Add)
Gen. Phacellophora (Add)
Gen. Poralia (Add)
Gen. Stellamedusa (Add)

Stellamedusa ventana (Add)

Gen. Stygiomedusa (Add)

Stygiomedusa gigantea (Add)

Gen. Tiburonia (Add)

Tiburonia granrojo (Add)

Gen. Ulmaris (Add)

Ord. Stauromedusae (Add)