Jeffrey's Goby
- Group
- Fish
- Records since 2000
- 238
- Scientific name
- Buenia jeffreysii
Gracilechinus acutus
- Group
- Starfish and sea urchins
- Records since 2000
- 236
- Peak month
- March
Agonopterix ocellana
- Group
- Butterflies and moths
- Records since 2000
- 234
- Peak month
- March
Lecanora compallens
- Group
- Lichens
- Records since 2000
- 233
- Peak month
- March
Tongue-leaf Copper-moss
- Group
- Mosses
- Records since 2000
- 233
- Scientific name
- Scopelophila cataractae
Steven's Goby
- Group
- Fish
- Records since 2000
- 232
- Scientific name
- Gobius gasteveni
Hydroporus neglectus
- Group
- Beetles
- Records since 2000
- 229
- Peak month
- March
Acleris literana
- Group
- Butterflies and moths
- Records since 2000
- 228
- Peak month
- March
Phellinus tremulae
- Group
- Fungi
- Records since 2000
- 226
- Peak month
- March
Seliger's herzogiella moss
- Group
- Mosses
- Records since 2000
- 226
- Scientific name
- Herzogiella seligeri
Dermacentor reticulatus
- Group
- Mites, harvestmen and other arachnids
- Records since 2000
- 225
- Peak month
- March
Sclerophora peronella
- Group
- Lichens
- Records since 2000
- 225
- Peak month
- March
Placynthiella lichen
- Group
- Lichens
- Records since 2000
- 224
- Scientific name
- Placynthiella uliginosa
Epilepton clarkiae
- Group
- Molluscs
- Records since 2000
- 221
- Peak month
- March
Lichtensia viburni
- Group
- True bugs
- Records since 2000
- 214
- Peak month
- March
A stalked jellyfish
- Group
- Jellyfish, corals and anemones
- Records since 2000
- 212
- Scientific name
- Calvadosia cruxmelitensis
Tritia varicosa
- Group
- Molluscs
- Records since 2000
- 211
- Peak month
- March
Acleris cristana
- Group
- Butterflies and moths
- Records since 2000
- 209
- Peak month
- March
Solenostoma sphaerocarpum
- Group
- Liverworts
- Records since 2000
- 209
- Peak month
- March
Stanford Tortula Moss
- Group
- Mosses
- Records since 2000
- 207
- Scientific name
- Hennediella stanfordensis
Osmia cornuta
- Group
- Bees, wasps and ants
- Records since 2000
- 206
- Peak month
- March
Balkan Anemone
- Group
- Flowering plants
- Records since 2000
- 202
- Scientific name
- Anemone blanda
Trimmer's Mining Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 202
- Scientific name
- Andrena trimmerana
Micarea botryoides
- Group
- Lichens
- Records since 2000
- 201
- Peak month
- March
Eulalia clavigera
- Group
- Worms (annelids)
- Records since 2000
- 199
- Peak month
- March
Fossombronia caespitiformis
- Group
- Liverworts
- Records since 2000
- 197
- Peak month
- March
Needle lichen
- Group
- Lichens
- Records since 2000
- 197
- Scientific name
- Chaenotheca furfuracea
Thedgonia ligustrina
- Group
- Fungi
- Records since 2000
- 196
- Peak month
- March
Chalk rock-bristle
- Group
- Mosses
- Records since 2000
- 195
- Scientific name
- Seligeria calcarea
Rosulabryum torquescens
- Group
- Mosses
- Records since 2000
- 195
- Peak month
- March
A Lichen
- Group
- Lichens
- Records since 2000
- 193
- Scientific name
- Myriolecis populicola
Sleepy crab
- Group
- Crustaceans
- Records since 2000
- 190
- Scientific name
- Dromia personata
Egle ciliata
- Group
- True flies
- Records since 2000
- 188
- Peak month
- March
Trochila craterium
- Group
- Fungi
- Records since 2000
- 188
- Peak month
- March
Micheli's ball-fruit
- Group
- Liverworts
- Records since 2000
- 187
- Scientific name
- Sphaerocarpos michelii
Forbes' glory-of-the-snow
- Group
- Flowering plants
- Records since 2000
- 185
- Scientific name
- Scilla forbesii
Saxicavella jeffreysi
- Group
- Molluscs
- Records since 2000
- 180
- Peak month
- March
Dennisiella babingtonii
- Group
- Fungi
- Records since 2000
- 179
- Peak month
- March
Haliclystus octoradiatus
- Group
- Jellyfish, corals and anemones
- Records since 2000
- 179
- Peak month
- March
Incline distichium moss
- Group
- Mosses
- Records since 2000
- 179
- Scientific name
- Distichium inclinatum
Green Hellebore
- Group
- Flowering plants
- Records since 2000
- 176
- Scientific name
- Helleborus viridis
Macropipus tuberculatus
- Group
- Crustaceans
- Records since 2000
- 176
- Peak month
- March
Shigella sonnei
- Group
- Microorganisms and protists
- Records since 2000
- 173
- Peak month
- March
Isotoma viridis
- Group
- Springtails
- Records since 2000
- 172
- Peak month
- March
Orange underwing
- Group
- Butterflies and moths
- Records since 2000
- 172
- Scientific name
- Archiearis parthenias
Solenocera membranacea
- Group
- Crustaceans
- Records since 2000
- 170
- Peak month
- March
River Pocket-moss
- Group
- Mosses
- Records since 2000
- 167
- Scientific name
- Fissidens rivularis
Crocus neapolitanus
- Group
- Flowering plants
- Records since 2000
- 165
- Peak month
- March