Cuckoo ray
- Group
- Fish
- Peak month
- November
- Records since 2000
- 21,334
Described in 1841
79 species
Lesser Flying Squid
- Group
- Molluscs
- Peak month
- November
- Records since 2000
- 3,484
Common Small Yellow Sally
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 3,436
Crested aeolis
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 3,334
Colonial Seasquirt
- Group
- Sea squirts
- Peak month
- July
- Records since 2000
- 2,785
Demon Shrimp
- Group
- Crustaceans
- Peak month
- October
- Records since 2000
- 2,066
Common Early Brown
- Group
- Stoneflies
- Peak month
- October
- Records since 2000
- 2,046
Hydroporus gyllenhalii
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 1,920
Didemnum maculosum
- Group
- Sea squirts
- Peak month
- August
- Records since 2000
- 1,713
Schizomavella linearis
- Group
- Bryozoans
- Peak month
- August
- Records since 2000
- 1,685
Gracile Sheet-web Weaver
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 1,627
Plant bug
- Group
- True bugs
- Peak month
- October
- Records since 2000
- 1,561
Compound sea squirt
- Group
- Sea squirts
- Peak month
- September
- Records since 2000
- 958
Doll Eualid
- Group
- Crustaceans
- Peak month
- August
- Records since 2000
- 869
Yellow-legged Black Legionnaire
- Group
- True flies
- Peak month
- July
- Records since 2000
- 777
Heart urchin
- Group
- Starfish and sea urchins
- Peak month
- August
- Records since 2000
- 754
Polyclinum aurantium
- Group
- Sea squirts
- Peak month
- July
- Records since 2000
- 746
Crisia aculeata
- Group
- Bryozoans
- Peak month
- September
- Records since 2000
- 629
Pointed Cingula
- Group
- Molluscs
- Peak month
- March
- Records since 2000
- 629
Apolygus spinolae
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 541
Panzer's Cuckoo Nomad Bee
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 472
Aplidium nordmanni
- Group
- Sea squirts
- Peak month
- July
- Records since 2000
- 443
Scruparia ambigua
- Group
- Bryozoans
- Peak month
- July
- Records since 2000
- 443
Cribrilina punctata
- Group
- Bryozoans
- Peak month
- August
- Records since 2000
- 429
Cydia fagiglandana
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 427
Chartoscirta cincta
- Group
- True bugs
- Peak month
- May
- Records since 2000
- 415
Psallus varians
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 414
Leucon nasica
- Group
- Crustaceans
- Peak month
- January
- Records since 2000
- 407
Diastylis rathkei
- Group
- Crustaceans
- Peak month
- June
- Records since 2000
- 373
Antistea elegans
- Group
- Spiders
- Peak month
- August
- Records since 2000
- 326
Oedothorax gibbosus
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 314
Capnea sanguinea
- Group
- Jellyfish, corals and anemones
- Peak month
- July
- Records since 2000
- 307
Microneta viaria
- Group
- Spiders
- Peak month
- November
- Records since 2000
- 306
Piratula latitans
- Group
- Spiders
- Peak month
- July
- Records since 2000
- 277
Dismodicus bifrons
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 264
Diphasia margareta
- Group
- Jellyfish, corals and anemones
- Peak month
- May
- Records since 2000
- 244
Common Bobtail
- Group
- Molluscs
- Peak month
- February
- Records since 2000
- 204
Lophomma punctatum
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 203
Compsidolon salicellum
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 184
Ptenidium nitidum
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 166
Epitonium trevelyanum
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 159
Orthotylus flavosparsus
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 158
Sphegina elegans
- Group
- True flies
- Peak month
- June
- Records since 2000
- 152
Erigonella hiemalis
- Group
- Spiders
- Peak month
- July
- Records since 2000
- 149
Coelioxys elongatus
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 144
Red-headed Bunting
- Group
- Birds
- Peak month
- October
- Records since 2000
- 139
Tuberculatus annulatus
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 128
Helophora insignis
- Group
- Spiders
- Peak month
- September
- Records since 2000
- 127
Zipperback
- Group
- True flies
- Peak month
- August
- Records since 2000
- 127
Saaristoa abnormis
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 125
Leiodes obesa
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 124
Omalogyra atomus
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 124
Hahnia nava
- Group
- Spiders
- Peak month
- May
- Records since 2000
- 118
Pycnoclavella producta
- Group
- Sea squirts
- Peak month
- June
- Records since 2000
- 112
Aphelinus varipes
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 111
Larch pug
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 110
Callicera rufa
- Group
- True flies
- Peak month
- May
- Records since 2000
- 106
Phaenoglyphis villosa
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 106
Alloxysta castanea
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 105
Clubiona brevipes
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 100
Iberina montana
- Group
- Spiders
- Peak month
- August
- Records since 2000
- 98
Gonatium rubellum
- Group
- Spiders
- Peak month
- September
- Records since 2000
- 96
Meligethes planiusculus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 96
Diplocephalus picinus
- Group
- Spiders
- Peak month
- May
- Records since 2000
- 89
Atomaria rubella
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 87
Aplidium proliferum
- Group
- Sea squirts
- Peak month
- September
- Records since 2000
- 83
Gray-backed Storm-Petrel
- Group
- Birds
- Peak month
- October
- Records since 2000
- 74
Pocadicnemis pumila
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 74
Shy albatross
- Group
- Birds
- Peak month
- October
- Records since 2000
- 74
Poeciloneta variegata
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 73
Macrosiphoniella artemisiae
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 72
Aguriahana stellulata
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 69
Didemnum fulgens
- Group
- Sea squirts
- Peak month
- August
- Records since 2000
- 64
Menetus dilatatus
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 62
Obscuriphantes obscurus
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 62
Triarthron maerkelii
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 61
Heleobia charruana
- Group
- Molluscs
- Peak month
- September
- Records since 2000
- 60
Myzus ligustri
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 56
Nineta vittata
- Group
- Lacewings
- Peak month
- September
- Records since 2000
- 50