Gwylan: Pilumnus hirtellus - cranc blewog
Gwylan: Pilumnus hirtellus - cranc blewog
Gwylan: Portumnus latipes - cranc nofiol Pennant
Gwylan: Carcinus maenas - cranc gwyrdd
Gwylan: Carcinus maenas - cranc gwyrdd
Gwylan: Carcinus maenas - cranc gwyrdd
Gwylan: Carcinus maenas - cranc gwyrdd
Gwylan: Necora puber - cranc llygatgoch
Gwylan: Liocarcinus depurator - cranc nofiol
Gwylan: Cancer pagurus - cranc coch
Gwylan: Corystes cassivelaunus. Cranc Caswallon, Cranc Melyn. The Masked Crab.
Gwylan: Inachus dorsettensis, Cranc Heglog Sbyngaidd. Scorpion Spider Crab.
Gwylan: Porcellana platycheles. Cranc Porslen Blewog. Broad Clawed Porcelain Crab.
Gwylan: Pisidia longicornis - cranc porslen
Gwylan: cranc porslen hirfawd - Pisidia longicornis
Gwylan: cranc porslen hirfawd - Pisidia longicornis
Gwylan: Galathea squamifera. Cimwch Byrdew. Squat Lobster.
Gwylan: Palaemon serratus. Corgimwch. Prawn.
Gwylan: Ligia oceanica. Gwrachen y Traeth. Sea Slater.
Gwylan: Sacculina carcini. Crachen Cranc. Sac Barnacle.
Gwylan: Sacculina carcini anghywir false
Gwylan: Sacculina carcini. Crachen Cranc. Sac Barnacle.
Gwylan: Perforatus perforatus (Balanus perforatus)
Gwylan: Lepas anatifera - gwyrain
Gwylan: Lepas anatifera - gwyrain
Gwylan: Lepas anatifera - gwyrain
Gwylan: Gwyrain - Lepas anatifera, Criccieth
Gwylan: Lepas anatifera - gwyrain
Gwylan: Nymphon gracile
Gwylan: Copyn y traeth - Nymphon gracile (seaspider)