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Jellyfish Warnings

Jellyfish Warning
Dichotomous key to the identification of the major groups of conspicuous jellyfish Print E-mail

Key to Jellyfish

ObservationClassification
Jellyfish with cilia plates arranged into rows running along the long body axis Ctenophora
Jellyfish without cilia plates arranged into rows running along the long body axis Cnidaria

Key to Cnidarians

ObservationClassification
Umbrella robust, without velum; opaque; never cuboidal in shape; can get large Scyphozoa
Umbrella robust, with velum; transluscent; cuboidal in shape; can get large Cubozoa
Umbrella delicate, with velum; transparent; variable shape; rarely large Hydrozoa

Key to Scyphozoa

ObservationClassification
Umbrella without marginal tentacles; with oral arms Rhizostomeae
Umbrella with marginal tentacles; with oral arms Semaeostomeae
Umbrella with marginal tentacles; without oral arms Coronata

Key to Cubozoans

ObservationClassification
With a single stalk bearing many tentacles arising from each lower corner of umbrella Chirodropidae
With one or more stalks each bearing a single tentacle arising from each lower corner of umbrella Carybdeidae