Family: |
Rathkeidae () |
Max. size: |
0.45 cm WD (male/unsexed) |
Environment: |
pelagic; marine; depth range 0 - 116 m |
Distribution: |
Indo-Pacific, Atlantic, Arctic and the Mediterranean. Mostly boreal, but also in subtropical and tropical. |
Diagnosis: |
Bell height measures 4 mm; short manubrium on a gelatinous peduncle; developing medusa buds on outer walls of stomach, later occupied by developing gonads; 4 distinct lips on the mouth, each with a pair of separated nematocysts knobs; 4 radial canals and 8 tentacle bulbs, 3-5 tentacles on each bulb at the base of each radial canal and 1-3 tentacles on the alternate bulbs; tentacle bulbs and stomach vary from yellowish to reddish to brown coloration (Ref. 2376). |
Biology: |
North-boreal species in the Atlantic and Pacific (Ref. 2376). Meroplanktonic (Ref. 120471). |
IUCN Red List Status: |
Not Evaluated (N.E.) Ref. 123251)
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Threat to humans: |
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Country info: |
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