Leach's squat lobster
- Group
- Crustaceans
- Records since 2000
- 2,080
- Scientific name
- Galathea squamifera
Fox Moth
- Group
- Butterflies and moths
- Records since 2000
- 2,079
- Scientific name
- Macrothylacia rubi
Haliplus lineatocollis
- Group
- Beetles
- Records since 2000
- 2,077
- Peak month
- September
Cherrystone beetle
- Group
- Beetles
- Records since 2000
- 2,072
- Scientific name
- Hyphydrus ovatus
Sand binder
- Group
- Seaweeds and algae
- Records since 2000
- 2,069
- Scientific name
- Rhodothamniella floridula
Kneiff's Hook-moss
- Group
- Mosses
- Records since 2000
- 2,062
- Scientific name
- Drepanocladus aduncus
Mexican Aster
- Group
- Flowering plants
- Records since 2000
- 2,055
- Scientific name
- Cosmos bipinnatus
Coral Worm
- Group
- Worms (annelids)
- Records since 2000
- 2,048
- Scientific name
- Salmacina dysteri
Sika Deer
- Group
- Mammals
- Records since 2000
- 2,042
- Scientific name
- Cervus nippon
Fragilaria capucina
- Group
- Seaweeds and algae
- Records since 2000
- 2,037
- Peak month
- September
Grayling [fish]
- Group
- Fish
- Records since 2000
- 2,023
- Scientific name
- Thymallus thymallus
Silk-Button Spangle Gall Wasp
- Group
- Bees, wasps and ants
- Records since 2000
- 2,023
- Scientific name
- Neuroterus numismalis
Navicula minima
- Group
- Seaweeds and algae
- Records since 2000
- 2,013
- Peak month
- September
Polycentropus kingi
- Group
- Caddisflies
- Records since 2000
- 2,005
- Peak month
- September
Rhoicosphenia abbreviata
- Group
- Seaweeds and algae
- Records since 2000
- 2,005
- Peak month
- September
Encyonema minutum
- Group
- Seaweeds and algae
- Records since 2000
- 2,002
- Peak month
- September
Long-tailed Jaeger
- Group
- Birds
- Records since 2000
- 2,000
- Scientific name
- Stercorarius longicaudus
Encyonema silesiacum
- Group
- Seaweeds and algae
- Records since 2000
- 1,999
- Peak month
- September
Gas Mantle Ascidian
- Group
- Sea squirts
- Records since 2000
- 1,998
- Scientific name
- Corella parallelogramma
Starlet
- Group
- Starfish and sea urchins
- Records since 2000
- 1,995
- Scientific name
- Asterina gibbosa
Pale-fruited Thread-moss
- Group
- Mosses
- Records since 2000
- 1,993
- Scientific name
- Pohlia annotina
Orange-striped Stonefly
- Group
- Stoneflies
- Records since 2000
- 1,953
- Scientific name
- Perlodes mortoni
Red-necked Phalarope
- Group
- Birds
- Records since 2000
- 1,950
- Scientific name
- Phalaropus lobatus
Sand sole
- Group
- Fish
- Records since 2000
- 1,939
- Scientific name
- Pegusa lascaris
Painted goby
- Group
- Fish
- Records since 2000
- 1,922
- Scientific name
- Pomatoschistus pictus
Oulimnius tuberculatus
- Group
- Beetles
- Records since 2000
- 1,909
- Peak month
- September
Plaster beetle
- Group
- Beetles
- Records since 2000
- 1,906
- Scientific name
- Cartodere bifasciata
Sigara falleni
- Group
- True bugs
- Records since 2000
- 1,895
- Peak month
- September
Hedgehog Slug
- Group
- Molluscs
- Records since 2000
- 1,879
- Scientific name
- Arion intermedius
Hairy sea-squirt
- Group
- Sea squirts
- Records since 2000
- 1,872
- Scientific name
- Ascidiella scabra
Navicula cryptotenella
- Group
- Seaweeds and algae
- Records since 2000
- 1,848
- Peak month
- September
Fig sponge
- Group
- Sponges
- Records since 2000
- 1,827
- Scientific name
- Suberites ficus
Bristly Crab
- Group
- Crustaceans
- Records since 2000
- 1,825
- Scientific name
- Pilumnus hirtellus
Maritime gardensnail
- Group
- Molluscs
- Records since 2000
- 1,820
- Scientific name
- Cernuella virgata
Calcareous tubeworm
- Group
- Worms (annelids)
- Records since 2000
- 1,813
- Scientific name
- Serpula vermicularis
Leach's/Townsend's/Ainley's Storm-Petrel
- Group
- Birds
- Records since 2000
- 1,800
- Scientific name
- Oceanodroma leucorhoa
Lissoclinum perforatum
- Group
- Sea squirts
- Records since 2000
- 1,798
- Peak month
- September
Water Fern, Fairy moss
- Group
- Ferns and horsetails
- Records since 2000
- 1,775
- Scientific name
- Azolla filiculoides
Valerian psyllid
- Group
- True bugs
- Records since 2000
- 1,769
- Scientific name
- Trioza centranthi
Common Rosefinch
- Group
- Birds
- Records since 2000
- 1,758
- Scientific name
- Carpodacus erythrinus
Rainbow Trout
- Group
- Fish
- Records since 2000
- 1,750
- Scientific name
- Oncorhynchus mykiss
Common Tortoiseshell Limpet
- Group
- Molluscs
- Records since 2000
- 1,749
- Scientific name
- Testudinalia testudinalis
Scorpion Spider Crab
- Group
- Crustaceans
- Records since 2000
- 1,747
- Scientific name
- Inachus dorsettensis
Sigara lateralis
- Group
- True bugs
- Records since 2000
- 1,698
- Peak month
- September
Bunny Ears
- Group
- Seaweeds and algae
- Records since 2000
- 1,686
- Scientific name
- Lomentaria articulata
Semi-ribbed spire snail
- Group
- Molluscs
- Records since 2000
- 1,686
- Scientific name
- Onoba semicostata
Oval Cockle
- Group
- Molluscs
- Records since 2000
- 1,682
- Scientific name
- Parvicardium pinnulatum
Pellucid Glass Snail
- Group
- Molluscs
- Records since 2000
- 1,680
- Scientific name
- Vitrina pellucida