Dipolydora socialis
- Peak month
- January
- Records since 2000
- 345
- Group
- Worms (annelids)
Fimbriosthenelais zetlandica
- Peak month
- August
- Records since 2000
- 341
- Group
- Worms (annelids)
Eulalia expusilla
- Peak month
- May
- Records since 2000
- 333
- Group
- Worms (annelids)
Maxmuelleria lankesteri
- Peak month
- March
- Records since 2000
- 329
- Group
- Worms (annelids)
Perkinsiana rubra
- Peak month
- September
- Records since 2000
- 328
- Group
- Worms (annelids)
Eisenia fetida
- Peak month
- April
- Records since 2000
- 326
- Group
- Worms (annelids)
Dioplosyllis cirrosa
- Peak month
- August
- Records since 2000
- 320
- Group
- Worms (annelids)
Phylo norvegica
- Peak month
- August
- Records since 2000
- 317
- Group
- Worms (annelids)
Polyphysia crassa
- Peak month
- August
- Records since 2000
- 316
- Group
- Worms (annelids)
Euchone southerni
- Peak month
- August
- Records since 2000
- 315
- Group
- Worms (annelids)
Streblosoma intestinale
- Peak month
- August
- Records since 2000
- 311
- Group
- Worms (annelids)
Harmothoe antilopes
- Peak month
- February
- Records since 2000
- 310
- Group
- Worms (annelids)
Ophelia celtica
- Peak month
- August
- Records since 2000
- 307
- Group
- Worms (annelids)
Atherospio guillei
- Peak month
- August
- Records since 2000
- 305
- Group
- Worms (annelids)
White worm
- Peak month
- June
- Records since 2000
- 304
- Scientific name
- Octolasion lacteum
Ehlersia cornuta
- Peak month
- July
- Records since 2000
- 301
- Group
- Worms (annelids)
Neoamphitrite figulus
- Peak month
- March
- Records since 2000
- 298
- Group
- Worms (annelids)
Sphaerodoridium minutum
- Peak month
- May
- Records since 2000
- 298
- Group
- Worms (annelids)
Arenicola defodiens
- Peak month
- July
- Records since 2000
- 294
- Group
- Worms (annelids)
Alitta virens
- Peak month
- August
- Records since 2000
- 293
- Group
- Worms (annelids)
Ficopomatus enigmaticus
- Peak month
- September
- Records since 2000
- 292
- Group
- Worms (annelids)
Fabricia stellaris
- Peak month
- August
- Records since 2000
- 291
- Group
- Worms (annelids)
Syllis prolifera
- Peak month
- August
- Records since 2000
- 287
- Group
- Worms (annelids)
Parasabella cambrensis
- Peak month
- September
- Records since 2000
- 285
- Group
- Worms (annelids)
Nicomache lumbricalis
- Peak month
- August
- Records since 2000
- 283
- Group
- Worms (annelids)
Sabellides octocirrata
- Peak month
- March
- Records since 2000
- 282
- Group
- Worms (annelids)
Perinereis cultrifera
- Peak month
- April
- Records since 2000
- 281
- Group
- Worms (annelids)
Odontosyllis ctenostoma
- Peak month
- August
- Records since 2000
- 280
- Group
- Worms (annelids)
Bimastos eiseni
- Peak month
- November
- Records since 2000
- 278
- Group
- Worms (annelids)
Malmgrenia castanea
- Peak month
- March
- Records since 2000
- 278
- Group
- Worms (annelids)
Microphthalmus similis
- Peak month
- July
- Records since 2000
- 277
- Group
- Worms (annelids)
Polygordius appendiculatus
- Peak month
- July
- Records since 2000
- 277
- Group
- Worms (annelids)
Dendrobaena attemsi
- Peak month
- May
- Records since 2000
- 276
- Group
- Worms (annelids)
Syllides japonicus
- Peak month
- April
- Records since 2000
- 276
- Group
- Worms (annelids)
Eulalia tripunctata
- Peak month
- June
- Records since 2000
- 266
- Group
- Worms (annelids)
Spiophanes wigleyi
- Peak month
- August
- Records since 2000
- 266
- Group
- Worms (annelids)
Parougia eliasoni
- Peak month
- May
- Records since 2000
- 265
- Group
- Worms (annelids)
Cossura longocirrata
- Peak month
- March
- Records since 2000
- 263
- Group
- Worms (annelids)
Cossura pygodactylata
- Peak month
- May
- Records since 2000
- 258
- Group
- Worms (annelids)
Eunice pennata
- Peak month
- July
- Records since 2000
- 258
- Group
- Worms (annelids)
Haplosyllis spongicola
- Peak month
- August
- Records since 2000
- 256
- Group
- Worms (annelids)
Owenia borealis
- Peak month
- May
- Records since 2000
- 256
- Group
- Worms (annelids)
Myrianida prolifera
- Peak month
- July
- Records since 2000
- 250
- Group
- Worms (annelids)
Typosyllis armillaris
- Peak month
- June
- Records since 2000
- 250
- Group
- Worms (annelids)
Gattyana cirrosa
- Peak month
- July
- Records since 2000
- 248
- Group
- Worms (annelids)
Macrochaeta helgolandica
- Peak month
- July
- Records since 2000
- 248
- Group
- Worms (annelids)
Paraehlersia ferrugina
- Peak month
- June
- Records since 2000
- 246
- Group
- Worms (annelids)
Phylo grubei
- Peak month
- October
- Records since 2000
- 245
- Group
- Worms (annelids)