Photo Common Name Latin Name Number of Observations
Spotted Seahare Aplysia punctata 550
Crowned Aeolis Facelina auriculata 426
Orange-clubbed Sea Slug Limacia clavigera 331
Sea Lemon Archidoris pseudoargus 329
Pink Coryphella Edmundsella pedata 322
Four-lined Polycera Polycera quadrilineata 281
Sap-sucking Slug Elysia viridis 280
NA Polycera kernowensis 239
Side-gilled Seaslug Berthella plumula 222
Velvet Dorid Jorunna tomentosa 203
Angular Seaslug Okenia nodosa 193
Boston Facelina Facelina bostoniensis 186
crested aeolis Antiopella cristata 185
NA Diaphorodoris luteocincta 163
NA Aeolidia filomenae 148
barnacle-eating dorid Onchidoris bilamellata 147
Hairy Spiny Dorid Acanthodoris pilosa 144
White Aeolis Favorinus branchialis 134
NA Doto fragilis 120
NA Doto pinnatifida 120
NA Crimora papillata 110
Striped Fjordia Coryphella lineata 107
Winged Thecacera Thecacera pennigera 101
NA Aeolidiella alderi 82
NA Candiella lineata 81
NA Rostanga rubra 78
NA Diaphorodoris alba 78
NA Tenellia cuanensis 78
Venus Seaslug Okenia elegans 75
whip fan nudibranch Candiella odhneri 74
NA Facelina annulicornis 73
Humped Ancula Sea Slug Ancula gibbosa 70
NA Favorinus blianus 65
NA Geitodoris planata 62
NA Eubranchus farrani 60
NA Polycera norvegica 60
NA Eubranchus linensis 60
NA Palio nothus 59
citrine nudibranch Pelagella castanea 55
NA Polycera faeroensis 51
NA Discodoris rosi 46
NA Trapania tartanella 45
NA Doto cuspidata 43
NA Eubranchus viriola 42
NA Pruvotfolia pselliotes 41
Celtic Sea Slug Onchidella celtica 40
Slender Eolis Coryphella gracilis 39
Homberg’s Triton Tritonia hombergii 38
White Atlantic Cadlina Cadlina laevis 38
NA Aeolidiella glauca 36
NA Eubranchus vittatus 34
NA Lomanotus marmoratus 33
Branched Sapsucker Placida dendritica 32
Johnston’s balloon eolis Tergipes tergipes 32
NA Aegires punctilucens 32
Gaudy Babakina Babakina anadoni 31
Crimson Hermaea Hermaea bifida 31
NA Trapania lineata 30
club-gilled nudibranch Eubranchus pallidus 28
Neat Aeolid Cuthonella concinna 28
NA Rubramoena rubescens 28
Fuzzy Onchidoris Onchidoris muricata 26
Warty Doris Doris verrucosa 25
Three-coloured Aeolis Eubranchus tricolor 24
NA Lomanotus genei 24
NA Atalodoris pictoni 24
NA Doris berghi 24
NA Tenellia foliata 23
Minute Aeolis Eubranchus exiguus 22
NA Rubramoena amoena 22
NA Atalodoris pusilla 22
Crowned Seaslug Doto coronata 21
NA Spurilla neapolitana 18
NA Coryphella browni 18
Rough Side-gilled Seaslug Pleurobranchus membranaceus 17
NA Hancockia uncinata 17
Shag-rug Nudibranch Aeolidia papillosa 17
NA Dendronotus keatleyae 17
NA Tenellia aurantia 17
NA Capellinia fustifera 16
NA Janolus hyalinus 15
NA Trapania maculata 14
NA Doto dunnei 13
NA Cadlina pellucida 13
NA Okenia aspersa 12
NA Doto tuberculata 12
NA Doto floridicola 11
Red-gilled Nudibranch Carronella pellucida 11
NA Candiella plebeia 11
NA Doto millbayana 10
NA Jorunna artsdatabankia 10
NA Coryphella chriskaugei 10
NA Doto koenneckeri 9
NA Doto lemchei 9
NA Facelina vicina 9
Beaumont’s Aeolid Cumanotus beaumonti 8
NA Doto hystrix 8
Tuberculate Dorid Adalaria proxima 8
NA Calma glaucoides 6
Flat Limapontia Limapontia depressa 6
NA Cuthona nana 6
NA Atagema gibba 6
Red-fingered Coryphella Coryphella verrucosa 6
Alder’s Seaslug Alderia modesta 5
NA Hero formosa 5
NA Tenellia caerulea 5
NA Atalodoris sparsa 5
NA Atalodoris oblonga 5
NA Eubranchus scintillans 5
NA Idaliadoris depressa 5
Green Aeolis Tenellia viridis 5
Salt-and-pepper Nudibranch Caloria elegans 4
Embleton’s Aeolis Embletonia pulchra 4
NA Dendronotus lacteus 4
Depilatory Seahare Aplysia depilans 3
Bushy-backed Nudibranch Dendronotus frondosus 3
NA Calma gobioophaga 3
NA Doto eireana 3
NA Hermaea variopicta 3
NA Tenellia pustulata 3
NA Doto hydrallmaniae 3
NA Doris sticta 3
NA Armina loveni 3
Rim-backed Nudibranch Palio dubia 2
Ridged Acteon Limapontia senestra 2
NA Doto maculata 2
NA Doto onusta 2
NA Doto sarsiae 2
NA Thordisa azmanii 2
NA Dendronotus europaeus 2
NA Okenia pulchella 2
Spotted Lagoon Aeolid Tenellia adspersa 1
Black Limapontia Limapontia capitata 1
NA Okenia leachii 1
NA Aldisa zetlandica 1
NA Hermaea cantabra 1
NA Calliopaea bellula 1
NA Polycera elegans 1
NA Corambe testudinaria 1
NA Candiella manicata 1

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