Knobbed brain coral
- Peak month
- August
- Records since 2000
- 1,080
- Scientific name
- Pseudodiploria clivosa
Orthopyxis sargassicola
- Peak month
- August
- Records since 2000
- 1,080
- Group
- Jellyfish, corals and anemones
Pinkmouth Hydroid
- Peak month
- August
- Records since 2000
- 1,080
- Scientific name
- Ectopleura crocea
Plume hydroid
- Peak month
- August
- Records since 2000
- 1,080
- Scientific name
- Aglaophenia tubulifera
Creeping Bell Hydroid
- Peak month
- August
- Records since 2000
- 1,040
- Scientific name
- Calycella syringa
Sea Thread Hydroid
- Peak month
- July
- Records since 2000
- 824
- Scientific name
- Obelia dichotoma
Lovenella clausa
- Peak month
- July
- Records since 2000
- 803
- Group
- Jellyfish, corals and anemones
Ginger anemone
- Peak month
- July
- Records since 2000
- 785
- Scientific name
- Isozoanthus sulcatus
Tall Sea Pen
- Peak month
- August
- Records since 2000
- 698
- Scientific name
- Funiculina quadrangularis
Trumpet Anemone
- Peak month
- June
- Records since 2000
- 683
- Scientific name
- Aiptasia mutabilis
Halopteris catharina
- Peak month
- August
- Records since 2000
- 659
- Group
- Jellyfish, corals and anemones
Barrel jellyfish
- Peak month
- September
- Records since 2000
- 641
- Scientific name
- Rhizostoma octopus
Podded Hydroid
- Peak month
- July
- Records since 2000
- 627
- Scientific name
- Aglaophenia pluma
Ringed tubularia
- Peak month
- August
- Records since 2000
- 620
- Scientific name
- Ectopleura larynx
Bottle-brush
- Peak month
- July
- Records since 2000
- 567
- Scientific name
- Thuiaria thuja
Neoturris pileata
- Peak month
- June
- Records since 2000
- 566
- Group
- Jellyfish, corals and anemones
Deeplet Sea Anemone
- Peak month
- August
- Records since 2000
- 564
- Scientific name
- Bolocera tuediae
Great Tooth Hydroid
- Peak month
- July
- Records since 2000
- 560
- Scientific name
- Sertularella polyzonias
Clapper Hydroid
- Peak month
- May
- Records since 2000
- 559
- Scientific name
- Sarsia tubulosa
Abyssoanthus nankaiensis
- Peak month
- August
- Records since 2000
- 540
- Group
- Jellyfish, corals and anemones
Alcyonium siderium
- Peak month
- August
- Records since 2000
- 540
- Group
- Jellyfish, corals and anemones
Double-star coral
- Peak month
- August
- Records since 2000
- 540
- Scientific name
- Diploastrea heliopora
Eirene ceylonensis
- Peak month
- August
- Records since 2000
- 540
- Group
- Jellyfish, corals and anemones
Eirene lacteoides
- Peak month
- August
- Records since 2000
- 540
- Group
- Jellyfish, corals and anemones
Mottled anemone
- Peak month
- August
- Records since 2000
- 540
- Scientific name
- Urticina crassicornis
Rhipidipathes reticulata
- Peak month
- August
- Records since 2000
- 540
- Group
- Jellyfish, corals and anemones
Sunset Cup Coral
- Peak month
- August
- Records since 2000
- 526
- Scientific name
- Leptopsammia pruvoti
Gem anemone
- Peak month
- September
- Records since 2000
- 508
- Scientific name
- Bunodactis verrucosa
Yellow Cluster Anemone
- Peak month
- June
- Records since 2000
- 506
- Scientific name
- Parazoanthus axinellae
Barrel Jelly
- Peak month
- September
- Records since 2000
- 487
- Scientific name
- Rhizostoma pulmo
Maned sea anemone
- Peak month
- September
- Records since 2000
- 474
- Scientific name
- Hormathia digitata
Cluster anemone
- Peak month
- August
- Records since 2000
- 455
- Scientific name
- Parazoanthus anguicomus
Epizoanthus papillosus
- Peak month
- September
- Records since 2000
- 440
- Group
- Jellyfish, corals and anemones
Fireworks anemone
- Peak month
- August
- Records since 2000
- 437
- Scientific name
- Pachycerianthus multiplicatus
Callistephanus pallida
- Peak month
- August
- Records since 2000
- 429
- Group
- Jellyfish, corals and anemones
Velella velella
- Peak month
- June
- Records since 2000
- 379
- Group
- Jellyfish, corals and anemones
Laomedea flexuosa
- Peak month
- May
- Records since 2000
- 374
- Group
- Jellyfish, corals and anemones
Halecium beanii
- Peak month
- September
- Records since 2000
- 366
- Group
- Jellyfish, corals and anemones
Hydroid
- Peak month
- August
- Records since 2000
- 347
- Scientific name
- Obelia bidentata
Obelia longissima
- Peak month
- June
- Records since 2000
- 326
- Group
- Jellyfish, corals and anemones
Amphisbetia operculata
- Peak month
- August
- Records since 2000
- 316
- Group
- Jellyfish, corals and anemones
Peachia cylindrica
- Peak month
- August
- Records since 2000
- 316
- Group
- Jellyfish, corals and anemones
Caryophyllia inornata
- Peak month
- August
- Records since 2000
- 312
- Group
- Jellyfish, corals and anemones
Capnea sanguinea
- Peak month
- July
- Records since 2000
- 307
- Group
- Jellyfish, corals and anemones
Diadumene cincta
- Peak month
- July
- Records since 2000
- 285
- Group
- Jellyfish, corals and anemones
Sertularella rugosa
- Peak month
- August
- Records since 2000
- 281
- Group
- Jellyfish, corals and anemones
Sagartia undata
- Peak month
- January
- Records since 2000
- 277
- Group
- Jellyfish, corals and anemones
Corymorpha nutans
- Peak month
- June
- Records since 2000
- 272
- Group
- Jellyfish, corals and anemones