Common Reed
- Group
- Flowering plants
- Records since 2000
- 10,169
- Scientific name
- Phragmites australis
Lesser cylinder-anemone
- Group
- Jellyfish, corals and anemones
- Records since 2000
- 10,169
- Scientific name
- Cerianthus lloydii
Birch Shieldbug
- Group
- True bugs
- Records since 2000
- 10,114
- Scientific name
- Elasmostethus interstinctus
Basking Shark
- Group
- Fish
- Records since 2000
- 10,066
- Scientific name
- Cetorhinus maximus
Lesser Broad Bordered Yellow Underwing
- Group
- Butterflies and moths
- Records since 2000
- 9,868
- Scientific name
- Noctua janthe
Double-striped Pug
- Group
- Butterflies and moths
- Records since 2000
- 9,852
- Scientific name
- Gymnoscelis rufifasciata
Long-clawed Porcelain Crab
- Group
- Crustaceans
- Records since 2000
- 9,663
- Scientific name
- Pisidia longicornis
Hover Fly
- Group
- True flies
- Records since 2000
- 9,660
- Scientific name
- Eristalis arbustorum
Caulleriella alata
- Group
- Worms (annelids)
- Records since 2000
- 9,633
- Peak month
- August
Ling [Fish]
- Group
- Fish
- Records since 2000
- 9,490
- Scientific name
- Molva molva
Japanese Rose
- Group
- Flowering plants
- Records since 2000
- 9,179
- Scientific name
- Rosa rugosa
Common Wainscot
- Group
- Butterflies and moths
- Records since 2000
- 9,064
- Scientific name
- Mythimna pallens
Vine's Rustic
- Group
- Butterflies and moths
- Records since 2000
- 8,964
- Scientific name
- Hoplodrina ambigua
Dog Whelk
- Group
- Molluscs
- Records since 2000
- 8,771
- Scientific name
- Nucella lapillus
Grey Top Shell
- Group
- Molluscs
- Records since 2000
- 8,765
- Scientific name
- Steromphala cineraria
Hornet Hoverfly
- Group
- True flies
- Records since 2000
- 8,755
- Scientific name
- Volucella zonaria
Tangle
- Group
- Seaweeds and algae
- Records since 2000
- 8,635
- Scientific name
- Laminaria hyperborea
Common Lobster
- Group
- Crustaceans
- Records since 2000
- 8,627
- Scientific name
- Homarus gammarus
Guelder-rose
- Group
- Flowering plants
- Records since 2000
- 8,622
- Scientific name
- Viburnum opulus
Brittlestar
- Group
- Starfish and sea urchins
- Records since 2000
- 8,600
- Scientific name
- Ophiura albida
Long-winged Conehead
- Group
- Grasshoppers and crickets
- Records since 2000
- 8,597
- Scientific name
- Conocephalus fuscus
Goat Willow
- Group
- Flowering plants
- Records since 2000
- 8,468
- Scientific name
- Salix caprea
Traveller's-joy
- Group
- Flowering plants
- Records since 2000
- 8,332
- Scientific name
- Clematis vitalba
Bog Hoverfly
- Group
- True flies
- Records since 2000
- 8,261
- Scientific name
- Sericomyia silentis
Black Clock
- Group
- Beetles
- Records since 2000
- 8,199
- Scientific name
- Pterostichus madidus
Rainbow weed, Spiked loosestrife, Purple-loosestrife
- Group
- Flowering plants
- Records since 2000
- 8,145
- Scientific name
- Lythrum salicaria
Common Tachinid
- Group
- True flies
- Records since 2000
- 8,124
- Scientific name
- Tachina fera
Oval venus
- Group
- Molluscs
- Records since 2000
- 7,943
- Scientific name
- Timoclea ovata
Green sea urchin
- Group
- Starfish and sea urchins
- Records since 2000
- 7,919
- Scientific name
- Psammechinus miliaris
Common Branded Skipper
- Group
- Butterflies and moths
- Records since 2000
- 7,841
- Scientific name
- Hesperia comma
Laonice bahusiensis
- Group
- Worms (annelids)
- Records since 2000
- 7,827
- Peak month
- August
Common Periwinkle
- Group
- Molluscs
- Records since 2000
- 7,788
- Scientific name
- Littorina littorea
European Storm-Petrel
- Group
- Birds
- Records since 2000
- 7,748
- Scientific name
- Hydrobates pelagicus
Common Carpet
- Group
- Butterflies and moths
- Records since 2000
- 7,681
- Scientific name
- Epirrhoe alternata
Scots Pine
- Group
- Conifers
- Records since 2000
- 7,517
- Scientific name
- Pinus sylvestris
Poecilochaetus serpens
- Group
- Worms (annelids)
- Records since 2000
- 7,474
- Peak month
- August
Beadlet Anemone
- Group
- Jellyfish, corals and anemones
- Records since 2000
- 7,465
- Scientific name
- Actinia equina
Hare's-tail Cottongrass
- Group
- Flowering plants
- Records since 2000
- 7,439
- Scientific name
- Eriophorum vaginatum
Acorn Barnacle
- Group
- Crustaceans
- Records since 2000
- 7,241
- Scientific name
- Semibalanus balanoides
Knotgrass
- Group
- Flowering plants
- Records since 2000
- 7,179
- Scientific name
- Polygonum aviculare
Sickle Hydroid
- Group
- Jellyfish, corals and anemones
- Records since 2000
- 7,170
- Scientific name
- Hydrallmania falcata
Downy Birch
- Group
- Flowering plants
- Records since 2000
- 7,152
- Scientific name
- Betula pubescens
Chaetozone zetlandica
- Group
- Worms (annelids)
- Records since 2000
- 7,129
- Peak month
- August
Harbour Crab
- Group
- Crustaceans
- Records since 2000
- 7,062
- Scientific name
- Liocarcinus depurator
Ampelisca spinipes
- Group
- Crustaceans
- Records since 2000
- 6,948
- Peak month
- August
Galathea intermedia
- Group
- Crustaceans
- Records since 2000
- 6,937
- Peak month
- August
Autumn Hawkbit
- Group
- Flowering plants
- Records since 2000
- 6,867
- Scientific name
- Scorzoneroides autumnalis
Ampharete lindstroemi
- Group
- Worms (annelids)
- Records since 2000
- 6,860
- Peak month
- August