Clymenella cincta
- Peak month
- June
- Records since 2000
- 163
- Group
- Worms (annelids)
Apomatus similis
- Peak month
- August
- Records since 2000
- 162
- Group
- Worms (annelids)
Chaetoparia nilssoni
- Peak month
- May
- Records since 2000
- 162
- Group
- Worms (annelids)
Commensodorum commensalis
- Peak month
- March
- Records since 2000
- 161
- Group
- Worms (annelids)
Eunoe nodosa
- Peak month
- October
- Records since 2000
- 156
- Group
- Worms (annelids)
Therochaeta flabellata
- Peak month
- July
- Records since 2000
- 156
- Group
- Worms (annelids)
Hydroides ezoensis
- Peak month
- June
- Records since 2000
- 154
- Group
- Worms (annelids)
Sabella discifera
- Peak month
- August
- Records since 2000
- 151
- Group
- Worms (annelids)
Tentacled Lagoon-Worm
- Peak month
- March
- Records since 2000
- 151
- Scientific name
- Alkmaria romijni
Claviramus candelus
- Peak month
- October
- Records since 2000
- 150
- Group
- Worms (annelids)
Murchieona muldali
- Peak month
- May
- Records since 2000
- 150
- Group
- Worms (annelids)
Polycirrus denticulatus
- Peak month
- January
- Records since 2000
- 148
- Group
- Worms (annelids)
Thalassema thalassema
- Peak month
- March
- Records since 2000
- 148
- Group
- Worms (annelids)
Polycirrus latidens
- Peak month
- October
- Records since 2000
- 147
- Group
- Worms (annelids)
Glycera celtica
- Peak month
- September
- Records since 2000
- 145
- Group
- Worms (annelids)
Spiochaetopterus typicus
- Peak month
- January
- Records since 2000
- 145
- Group
- Worms (annelids)
Polygordius lacteus
- Peak month
- July
- Records since 2000
- 143
- Group
- Worms (annelids)
Dorvillea rubrovittata
- Peak month
- August
- Records since 2000
- 137
- Group
- Worms (annelids)
Harmothoe pagenstecheri
- Peak month
- July
- Records since 2000
- 137
- Group
- Worms (annelids)
Chone infundibuliformis
- Peak month
- November
- Records since 2000
- 136
- Group
- Worms (annelids)
Cirrophorus furcatus
- Peak month
- June
- Records since 2000
- 136
- Group
- Worms (annelids)
Eumida punctifera
- Peak month
- July
- Records since 2000
- 136
- Group
- Worms (annelids)
Phyllodoce laminosa
- Peak month
- July
- Records since 2000
- 136
- Group
- Worms (annelids)
Epigamia alexandri
- Peak month
- July
- Records since 2000
- 133
- Group
- Worms (annelids)
Goniadella bobrezkii
- Peak month
- March
- Records since 2000
- 133
- Group
- Worms (annelids)
Leiochone leiopygos
- Peak month
- September
- Records since 2000
- 132
- Group
- Worms (annelids)
Litocorsa stremma
- Peak month
- June
- Records since 2000
- 132
- Group
- Worms (annelids)
Chaetozone vivipara
- Peak month
- April
- Records since 2000
- 130
- Group
- Worms (annelids)
Nephtys paradoxa
- Peak month
- January
- Records since 2000
- 130
- Group
- Worms (annelids)
Spirorbis tridentatus
- Peak month
- August
- Records since 2000
- 129
- Group
- Worms (annelids)
Pionosyllis lamelligera
- Peak month
- August
- Records since 2000
- 127
- Group
- Worms (annelids)
Aporrectodea icterica
- Peak month
- April
- Records since 2000
- 126
- Group
- Worms (annelids)
Pseudosyllis brevipennis
- Peak month
- August
- Records since 2000
- 126
- Group
- Worms (annelids)
Chone fauveli
- Peak month
- September
- Records since 2000
- 125
- Group
- Worms (annelids)
Dipolydora saintjosephi
- Peak month
- August
- Records since 2000
- 124
- Group
- Worms (annelids)
Scoletoma laurentiana
- Peak month
- September
- Records since 2000
- 124
- Group
- Worms (annelids)
Scolelepis gilchristi
- Peak month
- August
- Records since 2000
- 123
- Group
- Worms (annelids)
Eunereis elitoralis
- Peak month
- July
- Records since 2000
- 122
- Group
- Worms (annelids)
Worm
- Peak month
- March
- Records since 2000
- 121
- Scientific name
- Ophelia bicornis
Marenzelleria viridis
- Peak month
- March
- Records since 2000
- 120
- Group
- Worms (annelids)
Ophelia limacina
- Peak month
- June
- Records since 2000
- 119
- Group
- Worms (annelids)
Nereiphylla lutea
- Peak month
- March
- Records since 2000
- 117
- Group
- Worms (annelids)
Ophelina norvegica
- Peak month
- January
- Records since 2000
- 116
- Group
- Worms (annelids)
Spirorbis corallinae
- Peak month
- September
- Records since 2000
- 116
- Group
- Worms (annelids)
Myrianida pinnigera
- Peak month
- May
- Records since 2000
- 115
- Group
- Worms (annelids)
Armandia polyophthalma
- Peak month
- July
- Records since 2000
- 114
- Group
- Worms (annelids)
Desdemona ornata
- Peak month
- March
- Records since 2000
- 113
- Group
- Worms (annelids)
Neanthes fucata
- Peak month
- August
- Records since 2000
- 113
- Group
- Worms (annelids)