Eulalia aurea
- Peak month
- August
- Records since 2000
- 488
- Group
- Worms (annelids)
Nicolea zostericola
- Peak month
- May
- Records since 2000
- 487
- Group
- Worms (annelids)
Blue-grey Worm
- Peak month
- April
- Records since 2000
- 463
- Scientific name
- Octolasion cyaneum
Phyllodoce lineata
- Peak month
- July
- Records since 2000
- 462
- Group
- Worms (annelids)
Polycirrus caliendrum
- Peak month
- July
- Records since 2000
- 458
- Group
- Worms (annelids)
Oxydromus pallidus
- Peak month
- July
- Records since 2000
- 454
- Group
- Worms (annelids)
Syllides benedicti
- Peak month
- July
- Records since 2000
- 452
- Group
- Worms (annelids)
Scoletoma magnidentata
- Peak month
- August
- Records since 2000
- 450
- Group
- Worms (annelids)
Eunice dubitata
- Peak month
- August
- Records since 2000
- 449
- Group
- Worms (annelids)
Ophelina cylindricaudata
- Peak month
- October
- Records since 2000
- 448
- Group
- Worms (annelids)
Ampharete acutifrons
- Peak month
- July
- Records since 2000
- 445
- Group
- Worms (annelids)
Harmothoe fragilis
- Peak month
- August
- Records since 2000
- 445
- Group
- Worms (annelids)
Laetmonice hystrix
- Peak month
- July
- Records since 2000
- 445
- Group
- Worms (annelids)
Lumbrineris futilis
- Peak month
- August
- Records since 2000
- 440
- Group
- Worms (annelids)
Nothria conchylega
- Peak month
- June
- Records since 2000
- 440
- Group
- Worms (annelids)
Praxillella praetermissa
- Peak month
- June
- Records since 2000
- 437
- Group
- Worms (annelids)
Dendrobaena octaedra
- Peak month
- April
- Records since 2000
- 436
- Group
- Worms (annelids)
Goniada emerita
- Peak month
- August
- Records since 2000
- 434
- Group
- Worms (annelids)
Aricidea wassi
- Peak month
- August
- Records since 2000
- 431
- Group
- Worms (annelids)
Drilonereis filum
- Peak month
- June
- Records since 2000
- 429
- Group
- Worms (annelids)
Dialychone collaris
- Peak month
- October
- Records since 2000
- 427
- Group
- Worms (annelids)
Ophelina modesta
- Peak month
- August
- Records since 2000
- 427
- Group
- Worms (annelids)
Euclymene droebachiensis
- Peak month
- March
- Records since 2000
- 426
- Group
- Worms (annelids)
Pseudopolydora antennata
- Peak month
- September
- Records since 2000
- 423
- Group
- Worms (annelids)
Streptodonta pterochaeta
- Peak month
- August
- Records since 2000
- 422
- Group
- Worms (annelids)
Pista maculata
- Peak month
- May
- Records since 2000
- 416
- Group
- Worms (annelids)
Harmothoe imbricata
- Peak month
- May
- Records since 2000
- 414
- Group
- Worms (annelids)
Melinna elisabethae
- Peak month
- May
- Records since 2000
- 414
- Group
- Worms (annelids)
Pista mediterranea
- Peak month
- August
- Records since 2000
- 408
- Group
- Worms (annelids)
Protodriloides chaetifer
- Peak month
- July
- Records since 2000
- 405
- Group
- Worms (annelids)
Lacydonia miranda
- Peak month
- August
- Records since 2000
- 403
- Group
- Worms (annelids)
Erinaceusyllis erinaceus
- Peak month
- May
- Records since 2000
- 401
- Group
- Worms (annelids)
Praxillura longissima
- Peak month
- September
- Records since 2000
- 390
- Group
- Worms (annelids)
Scolelepis foliosa
- Peak month
- July
- Records since 2000
- 387
- Group
- Worms (annelids)
Parathelepus collaris
- Peak month
- August
- Records since 2000
- 380
- Group
- Worms (annelids)
Ditrupa arietina
- Peak month
- August
- Records since 2000
- 377
- Group
- Worms (annelids)
Eulalia ornata
- Peak month
- June
- Records since 2000
- 376
- Group
- Worms (annelids)
Hypania invalida
- Peak month
- October
- Records since 2000
- 373
- Group
- Worms (annelids)
Rhodine loveni
- Peak month
- August
- Records since 2000
- 373
- Group
- Worms (annelids)
Scolelepis tridentata
- Peak month
- July
- Records since 2000
- 372
- Group
- Worms (annelids)
Diplocirrus stopbowitzi
- Peak month
- August
- Records since 2000
- 367
- Group
- Worms (annelids)
Rullierinereis ancornunezi
- Peak month
- August
- Records since 2000
- 363
- Group
- Worms (annelids)
Pista lornensis
- Peak month
- August
- Records since 2000
- 361
- Group
- Worms (annelids)
Euphrosine foliosa
- Peak month
- August
- Records since 2000
- 353
- Group
- Worms (annelids)
Syllis parapari
- Peak month
- April
- Records since 2000
- 351
- Group
- Worms (annelids)
Polynoe scolopendrina
- Peak month
- June
- Records since 2000
- 349
- Group
- Worms (annelids)
Prionospio dubia
- Peak month
- March
- Records since 2000
- 349
- Group
- Worms (annelids)
Ampharete octocirrata
- Peak month
- May
- Records since 2000
- 348
- Group
- Worms (annelids)