Montagu’s sea snails often feed on small crustaceans and use a modified pelvic fin or ‘sucker’ to cling rocks and seaweed. Which is where it is often found!
Sut i'w hadnabod
This small fish resembles a large tadpole, with a large head and tapering tail, which can often be seen curled up under its chin. Colour is usually olive brown.
Dosbarthiad
Found around the British Isles and North Sea.
Roeddech chi yn gwybod?
This fish has no scales, but instead has skin, covered in tiny prickles!