Fish
Butterfish
Pholis gunnellus
How to spot it
Slippery ribbon-like fish with a row of dark-and-pale ocelli along the dorsal fin.
Usually seen at
3-65 m (median 13 m)
Size
Small (under 10 cm)
Habitat
Rocky crevice, Sandy bottom
Behaviour
Hiding
Where it's seen
Occurrence records around the UK and north-east Atlantic (OBIS).