Eudendrium ramosum
- Peak month
- July
- Records since 2000
- 71
- Group
- Jellyfish, corals and anemones
Sphenotrochus andrewianus
- Peak month
- July
- Records since 2000
- 68
- Group
- Jellyfish, corals and anemones
Cordylophora caspia
- Peak month
- September
- Records since 2000
- 67
- Group
- Jellyfish, corals and anemones
Abietinaria filicula
- Peak month
- September
- Records since 2000
- 66
- Group
- Jellyfish, corals and anemones
Filellum serpens
- Peak month
- July
- Records since 2000
- 66
- Group
- Jellyfish, corals and anemones
Aequorea vitrina
- Peak month
- August
- Records since 2000
- 65
- Group
- Jellyfish, corals and anemones
Portuguese man o' war
- Peak month
- October
- Records since 2000
- 64
- Scientific name
- Physalia physalis
Sertularella tenella
- Peak month
- August
- Records since 2000
- 64
- Group
- Jellyfish, corals and anemones
Weymouth carpet coral
- Peak month
- October
- Records since 2000
- 62
- Scientific name
- Hoplangia durotrix
An anemone
- Peak month
- March
- Records since 2000
- 61
- Scientific name
- Paraphellia expansa
Edwardsiella carnea
- Peak month
- June
- Records since 2000
- 60
- Group
- Jellyfish, corals and anemones
Eudendrium arbuscula
- Peak month
- May
- Records since 2000
- 60
- Group
- Jellyfish, corals and anemones
Hydroid
- Peak month
- September
- Records since 2000
- 59
- Scientific name
- Laomedea angulata
Candelabrum cocksii
- Peak month
- April
- Records since 2000
- 58
- Group
- Jellyfish, corals and anemones
Craterolophus convolvulus
- Peak month
- September
- Records since 2000
- 55
- Group
- Jellyfish, corals and anemones
Eudendrium annulatum
- Peak month
- May
- Records since 2000
- 51
- Group
- Jellyfish, corals and anemones
A hydroid
- Peak month
- August
- Records since 2000
- 50
- Scientific name
- Diphasia nigra
Discomedusa lobata
- Peak month
- November
- Records since 2000
- 50
- Group
- Jellyfish, corals and anemones
Hydranthea margarica
- Peak month
- October
- Records since 2000
- 50
- Group
- Jellyfish, corals and anemones