Jellyfish
Blue Jellyfish
Cyanea lamarckii
How to spot it
Like a smaller lion's mane but a translucent purplish-blue, the colour deepening towards the top of the bell. Many slender trailing tentacles beneath; a mild stinger of inshore waters.
Usually seen at
0-35 m (median 11 m)
Size
Medium (10-50 cm)
Habitat
Open water, Near surface
Behaviour
Solitary
Where it's seen
Occurrence records around the UK and north-east Atlantic (OBIS).