Shaw's Bristle-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 2,410
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- Species by county
- Ceredigion
Species recorded in Ceredigion
887 species
Ceredigion — county
Cranberry
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 2,409
Late Needle Fly
- Group
- Stoneflies
- Peak month
- September
- Records since 2000
- 2,409
Glossosoma boltoni
- Group
- Caddisflies
- Peak month
- September
- Records since 2000
- 2,394
Leeches
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 2,391
Green Pocket-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 2,389
Inflated Notchwort
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 2,387
Dented Silk-moss
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 2,324
Common Apple-moss
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 2,320
Synedra dissipata
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,300
Alpine Thread-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,292
Pepper Dulse
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,286
Five-ranked Bog-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,283
Straw Spear-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,266
Alpine Water-moss
- Group
- Mosses
- Peak month
- August
- Records since 2000
- 2,254
Nitzschia palea
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,250
Polycelis felina
- Group
- Flatworms
- Peak month
- April
- Records since 2000
- 2,250
Achnanthes oblongella
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,248
Planothidium lanceolatum
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,245
Exilaria vaucheriae
- Group
- Seaweeds and algae
- Peak month
- April
- Records since 2000
- 2,228
Cocconeis euglypta
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,218
Bog Pondweed
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 2,185
Western Gorse
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 2,129
Gomphonema intricatum
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,121
Delicate Germanderwort
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 2,119
Narrow-fruited Crisp-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,103
Pale Thread-moss
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 2,091
Planothidium frequentissimum
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,083
Toothed Small Brown
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 2,052
Common Early Brown
- Group
- Stoneflies
- Peak month
- October
- Records since 2000
- 2,046
Fragilaria capucina
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,037
Thorn cladonia
- Group
- Lichens
- Peak month
- August
- Records since 2000
- 2,030
Annual Sea-blite
- Group
- Flowering plants
- Peak month
- October
- Records since 2000
- 2,027
Delicate Earth-moss
- Group
- Mosses
- Peak month
- October
- Records since 2000
- 2,020
Navicula minima
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,013
Polycentropus kingi
- Group
- Caddisflies
- Peak month
- September
- Records since 2000
- 2,005
Caenis rivulorum
- Group
- Mayflies
- Peak month
- April
- Records since 2000
- 2,004
Encyonema minutum
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,002
Encyonema silesiacum
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 1,999
Girgensohn's Bog-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 1,993
Pale-fruited Thread-moss
- Group
- Mosses
- Peak month
- September
- Records since 2000
- 1,993
Red forklet moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 1,984
Heath Earwort
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 1,975
Orange-striped Stonefly
- Group
- Stoneflies
- Peak month
- September
- Records since 2000
- 1,953
Hercynian Haircap
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 1,919
Oulimnius tuberculatus
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 1,909
Early Needle Fly
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 1,872
Common Flat Periwinkle
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 1,870