Bristle worm
- Peak month
- April
- Records since 2000
- 111
- Scientific name
- Sternaspis scutata
Nicomache trispinata
- Peak month
- September
- Records since 2000
- 111
- Group
- Worms (annelids)
Dialychone dunerificta
- Peak month
- September
- Records since 2000
- 108
- Group
- Worms (annelids)
Melinna cristata
- Peak month
- June
- Records since 2000
- 108
- Group
- Worms (annelids)
Parasabella torulis
- Peak month
- September
- Records since 2000
- 107
- Group
- Worms (annelids)
Alboglossiphonia heteroclita
- Peak month
- June
- Records since 2000
- 105
- Group
- Worms (annelids)
Fimbriosthenelais minor
- Peak month
- September
- Records since 2000
- 105
- Group
- Worms (annelids)
Pareurythoe borealis
- Peak month
- April
- Records since 2000
- 105
- Group
- Worms (annelids)
Micromaldane ornithochaeta
- Peak month
- August
- Records since 2000
- 103
- Group
- Worms (annelids)
Goniada pallida
- Peak month
- March
- Records since 2000
- 102
- Group
- Worms (annelids)
Sphaerodoridium claparedii
- Peak month
- March
- Records since 2000
- 102
- Group
- Worms (annelids)
Harmothoe spinifera
- Peak month
- April
- Records since 2000
- 101
- Group
- Worms (annelids)
Eusyllis assimilis
- Peak month
- April
- Records since 2000
- 99
- Group
- Worms (annelids)
Eumida maia
- Peak month
- April
- Records since 2000
- 98
- Group
- Worms (annelids)
Janua heterostropha
- Peak month
- August
- Records since 2000
- 98
- Group
- Worms (annelids)
Dodecaceria concharum
- Peak month
- July
- Records since 2000
- 97
- Group
- Worms (annelids)
Olavius ilvae
- Peak month
- January
- Records since 2000
- 97
- Group
- Worms (annelids)
Salvatoria clavata
- Peak month
- May
- Records since 2000
- 97
- Group
- Worms (annelids)
Earthworm
- Peak month
- March
- Records since 2000
- 96
- Scientific name
- Aporrectodea limicola
Polyophthalmus pictus
- Peak month
- September
- Records since 2000
- 96
- Group
- Worms (annelids)
Aricidea suecica
- Peak month
- May
- Records since 2000
- 95
- Group
- Worms (annelids)
Harmothoe lunulata
- Peak month
- September
- Records since 2000
- 95
- Group
- Worms (annelids)
Nothria britannica
- Peak month
- August
- Records since 2000
- 95
- Group
- Worms (annelids)
Panthalis oerstedi
- Peak month
- January
- Records since 2000
- 94
- Group
- Worms (annelids)
Proceraea prismatica
- Peak month
- July
- Records since 2000
- 94
- Group
- Worms (annelids)
Orbinia armandi
- Peak month
- July
- Records since 2000
- 93
- Group
- Worms (annelids)
Orbinia latreillii
- Peak month
- June
- Records since 2000
- 92
- Group
- Worms (annelids)
Proceraea picta
- Peak month
- July
- Records since 2000
- 92
- Group
- Worms (annelids)
Streptodonta exsulis
- Peak month
- August
- Records since 2000
- 92
- Group
- Worms (annelids)
Glycera capitata
- Peak month
- April
- Records since 2000
- 91
- Group
- Worms (annelids)
Salvatoria swedmarki
- Peak month
- August
- Records since 2000
- 91
- Group
- Worms (annelids)
Ophelia rathkei
- Peak month
- September
- Records since 2000
- 90
- Group
- Worms (annelids)
Ctenodrilus serratus
- Peak month
- May
- Records since 2000
- 89
- Group
- Worms (annelids)
Euphrosine borealis
- Peak month
- August
- Records since 2000
- 89
- Group
- Worms (annelids)
Myrianida inermis
- Peak month
- January
- Records since 2000
- 88
- Group
- Worms (annelids)
Thoracophelia flabellifera
- Peak month
- July
- Records since 2000
- 87
- Group
- Worms (annelids)
Ophryotrocha puerilis
- Peak month
- June
- Records since 2000
- 85
- Group
- Worms (annelids)
Sphaerodoridium balticum
- Peak month
- May
- Records since 2000
- 84
- Group
- Worms (annelids)
Echiurus echiurus
- Peak month
- May
- Records since 2000
- 83
- Group
- Worms (annelids)
Myrianida brachycephala
- Peak month
- July
- Records since 2000
- 83
- Group
- Worms (annelids)
Paradoneis armata
- Peak month
- June
- Records since 2000
- 82
- Group
- Worms (annelids)
Chaetozone jubata
- Peak month
- April
- Records since 2000
- 81
- Group
- Worms (annelids)
Lepidonotus clava
- Peak month
- July
- Records since 2000
- 81
- Group
- Worms (annelids)
Tharyx robustus
- Peak month
- June
- Records since 2000
- 81
- Group
- Worms (annelids)
Pseudopolydora nordica
- Peak month
- April
- Records since 2000
- 80
- Group
- Worms (annelids)
Dendrobaena veneta
- Peak month
- March
- Records since 2000
- 79
- Group
- Worms (annelids)
Glycera tesselata
- Peak month
- September
- Records since 2000
- 78
- Group
- Worms (annelids)
Pista elongata
- Peak month
- March
- Records since 2000
- 78
- Group
- Worms (annelids)