Common Starfish
- Peak month
- July
- Records since 2000
- 33,273
- Scientific name
- Asterias rubens
Common Urchin
- Peak month
- June
- Records since 2000
- 18,230
- Scientific name
- Echinus esculentus
Brooding snake star
- Peak month
- August
- Records since 2000
- 11,766
- Scientific name
- Amphipholis squamata
Common Brittlestar
- Peak month
- June
- Records since 2000
- 11,342
- Scientific name
- Ophiothrix fragilis
Broad beau of sea
- Peak month
- August
- Records since 2000
- 11,335
- Scientific name
- Echinocyamus pusillus
Spiny Starfish
- Peak month
- July
- Records since 2000
- 10,884
- Scientific name
- Marthasterias glacialis
Brittlestar
- Peak month
- June
- Records since 2000
- 10,470
- Scientific name
- Amphiura filiformis
Common Sunstar
- Peak month
- June
- Records since 2000
- 9,661
- Scientific name
- Crossaster papposus
Brittlestar
- Peak month
- August
- Records since 2000
- 8,600
- Scientific name
- Ophiura albida
Serpent star
- Peak month
- June
- Records since 2000
- 8,093
- Scientific name
- Ophiura ophiura
Green sea urchin
- Peak month
- August
- Records since 2000
- 7,919
- Scientific name
- Psammechinus miliaris
Brittlestar
- Peak month
- June
- Records since 2000
- 5,175
- Scientific name
- Amphiura chiajei
Seven-armed Starfish
- Peak month
- September
- Records since 2000
- 5,026
- Scientific name
- Luidia ciliaris
Rosy Feather-star
- Peak month
- September
- Records since 2000
- 4,848
- Scientific name
- Antedon bifida
Sand Star
- Peak month
- September
- Records since 2000
- 4,439
- Scientific name
- Astropecten irregularis
Black Brittlestar
- Peak month
- September
- Records since 2000
- 4,267
- Scientific name
- Ophiocomina nigra
Bloody Henry Starfish
- Peak month
- June
- Records since 2000
- 3,630
- Scientific name
- Henricia oculata
Sea Potato
- Peak month
- June
- Records since 2000
- 3,598
- Scientific name
- Echinocardium cordatum
Cotton Spinner
- Peak month
- July
- Records since 2000
- 3,139
- Scientific name
- Holothuria forskali
Worm-like Sea Cucumber
- Peak month
- August
- Records since 2000
- 3,034
- Scientific name
- Leptosynapta inhaerens
Red cushion stat
- Peak month
- July
- Records since 2000
- 2,817
- Scientific name
- Porania pulvillus
Starlet
- Peak month
- September
- Records since 2000
- 1,995
- Scientific name
- Asterina gibbosa
Paraleptopentacta elongata
- Peak month
- June
- Records since 2000
- 1,814
- Group
- Starfish and sea urchins
Sand Burrowing Brittle Star
- Peak month
- June
- Records since 2000
- 1,808
- Scientific name
- Acrocnida brachiata
Ophiocten affinis
- Peak month
- July
- Records since 2000
- 1,795
- Group
- Starfish and sea urchins
Rock Urchin
- Peak month
- June
- Records since 2000
- 1,770
- Scientific name
- Paracentrotus lividus
Brown Sea Cucumber
- Peak month
- July
- Records since 2000
- 1,613
- Scientific name
- Aslia lefevrei
Sea Gherkin
- Peak month
- May
- Records since 2000
- 1,512
- Scientific name
- Pawsonia saxicola
Luidia sarsii
- Peak month
- September
- Records since 2000
- 1,507
- Group
- Starfish and sea urchins
Amphiura securigera
- Peak month
- August
- Records since 2000
- 1,444
- Group
- Starfish and sea urchins
Leptosynapta bergensis
- Peak month
- June
- Records since 2000
- 1,428
- Also known as
- a sea cucumber
Purple Heart Urchin
- Peak month
- September
- Records since 2000
- 1,188
- Scientific name
- Spatangus purpureus
Thyone fusus
- Peak month
- July
- Records since 2000
- 1,053
- Group
- Starfish and sea urchins
Echinocardium flavescens
- Peak month
- August
- Records since 2000
- 949
- Group
- Starfish and sea urchins
Crevice Brittlestar
- Peak month
- August
- Records since 2000
- 925
- Scientific name
- Ophiopholis aculeata
Gravel Sea Cucumber
- Peak month
- June
- Records since 2000
- 888
- Scientific name
- Neopentadactyla mixta
Labidoplax buskii
- Peak month
- March
- Records since 2000
- 879
- Group
- Starfish and sea urchins
Goose Foot Starfish
- Peak month
- March
- Records since 2000
- 870
- Scientific name
- Anseropoda placenta
Rosy Starfish
- Peak month
- August
- Records since 2000
- 858
- Scientific name
- Stichastrella rosea
Blood Star
- Peak month
- August
- Records since 2000
- 760
- Scientific name
- Henricia sanguinolenta
Heart urchin
- Peak month
- August
- Records since 2000
- 754
- Scientific name
- Brissopsis lyrifera
Purple Sun Star
- Peak month
- August
- Records since 2000
- 733
- Scientific name
- Solaster endeca
Ophiactis balli
- Peak month
- May
- Records since 2000
- 730
- Group
- Starfish and sea urchins
Leptasterias muelleri
- Peak month
- August
- Records since 2000
- 619
- Group
- Starfish and sea urchins
Leptometra celtica
- Peak month
- July
- Records since 2000
- 511
- Group
- Starfish and sea urchins
Oestergrenia digitata
- Peak month
- May
- Records since 2000
- 451
- Group
- Starfish and sea urchins
Antedon petasus
- Peak month
- July
- Records since 2000
- 430
- Group
- Starfish and sea urchins
Hippasteria phrygiana
- Peak month
- August
- Records since 2000
- 420
- Group
- Starfish and sea urchins