*Acanthoica aculeata* (Kamptner) | S1 | *Goniodoma sphaericum* (Murr. & Whitt.) | S2 |

*Acanthoica coranata* (Lohmann) | E1 | *Gossleriella tropica* (Schütt) | T1 |

*Acanthoica quattrospina* (Lohmann) | S1 | *Grammatophora angulosa* (Ehrenberg) | E1 |

*Acanthoica rubus* (Kamptner) | P2 | *Grammatophora serpentina* (Ehrenberg) | E1 |

*Alexandrium margalefii* (Balech) | E3 | *Gymnodinium abbreviatum* (Kof.&Swezy) | S2 |

*Alexandrium monilatum* (Howell) | S1 | *Gymnodinium conicum* (Kof.&Swezy) | P2 |

*Alexandrium tropicale* (Balech) | T3 | *Gymnodinium fussum* (Ehrenb.) Stein | S3 |

*Amphidinium crassum* (Lohmann) | P1 | *Gymnodinium grammaticum* (Pouchet) | E1 |

*Amphidinium herdmanii* (Kofoid & Swezy) | T2 | *Gymnodinium mikimotoi* (Miy.Kom.ex Oda) | S3 |

*Amphidinium pelagicum* (Lebour) | S2 | *Gymnodinium rhomboids* (Schütt) | S3 |

*Amphiprora angustata* (spec. nov.) | T3 | *Gymnodinium stellatum* (Hulburt) | S1 |

*Amphiprora hyalina* (Cleve) | E1 | *Gymnodinium variabile* (Herdman) | E2 |

*Amphora ocellata* (Donkin) | E2 | *Gyrosigma balticum* (Ehrenberg) Cleve | S2 |

*Anthosphaera bicornu* (Schlauder) | S2 | *Gyrosigma littorale* (Wm. Smith) Cleve | E2 |

*Anthosphaera fragaria* (Kamptner) | P1 | *Gyrosigma wansbeckii* (Donkin) Cleve | T3 |

*Bacillaria paradoxa* (Gmelin) | E1 | *Helicosphaera hyalina* (Gaarder) | P1 |

*Bacteriastrum elongatum* (Cleve) | E1 | *Helladosphaera richardi* (Bernard) | S3 |

*Berkeleya micans* (Grunow) | T1 | *Heterodinium whittingae* (Kofoid) | E1 |

*Biddulphia sinensis* (Greville) | T3 | *Lohmannosphaera citrus* (Schlauder) | T1 |

*Cachonina niei* (Loeblich) | S1 | *Mesoporus adriaticus* (Schiller) Lilllick | P2 |

*Calciosolenia murrayi* (Gran) | S1 | *Mesoporus bisimpressus* (Schiller) Lilllick | T1 |

*Caloneis subsalina* (Donkin) Hendey | T3 | *Mesoporus globulus* (Schiller) Lilllick | T1 |

*Calyptrosphaera circumspicta* (Schiller) | S2 | *Mesoporus perforatus* (Gran) Lilllick | E3 |

*Calyptrosphaera galea* (Lecal) | E2 | *Micracantodinium setiferum* (Lohm.) *Deflan*. | E2 |

*Calyptrosphaera sphaeroidea* (Schiller) | T2 | *Navicula calida* (sp. nova) | T3 |

*Calyptrosphaera superba* (Lecal) | E1 | *Navicula crucifera* (Grun.) Schmidt | S1 |

*Calyptrosphaera tholifera* (Kamptner) | S1 | *Navicula distans* (Wm. Smith) Schmidt | T2 |

*Centrodinium eminens* (Böhm) | T2 | *Navicula florinae* (Møller) | P3 |

*Centrodinium maximum* (Pavillard) | T2 | *Navicula menaiana* (Hendey) | E2 |

*Ceratium geniculatum* (Lemm.) Cleve | T1 | *Navicula pennata* (Schmidt) | S1 |

*Ceratium hexacanthum* (Gourret) | P1 | *Navicula rossii* (Salah) | T3 |

*Ceratoperidinium yeye* (Margalef) | S2 | *Navicula rectangulata* (Greg.) Rabenhorst | E3 |

*Chaetoceros atlanticus* (Cleve) | T3 | *Navicula transitans* (Grunow) Cleve | P3 |

*Chaetoceros brevis* (Schütt) | E1 | *Okedenia inflexa* (Eulenstein ex de Toni) | E2 |

*Chaetoceros concavicorne* (Mangin) | T3 | *Ophiaster formosus* (Gran) | T3 |

*Chaetoceros difficilis* (Cleve) | S2 | *Oxytoxum caudatum* (Schiller) | S2 |

*Chaetoceros messanensis* (Castracane) | T3 | *Oxytoxum crassum* (Schiller) | P3 |

*Chaetoceros seiracanthus* (Gran) | E2 | *Oxytoxum cristatum* (Kofoid) | T2 |

*Chaetoceros similis* (Cleve) | S1 | *Oxytoxum globosum* (Schiller) | T2 |

*Chaetoceros subsecuntum* (Grunow) Hustedt | S2 | *Oxytoxum obliquum* (Schiller) | P2 |

*Chaetoceros tortissimus* (Gran) | E2 | *Oxytoxum ovale* (Schiller) | T2 |

*Cochlodinium achromaticum* (Lebour) | T3 | *Oxytoxum minutum* (Rampi) | T2 |

*Cochlodinium pulchellum* (Lebour) | S1 | *Oxytoxum spinosum* (Rampi) | E3 |

*Cyclococcolithus fragilis* (Lohmann) *Deflandre* | S1 | *Oxytoxum tesselatum* (Stein) Schütt | P1 |

*Dinopysis ovum* (Schütt) | T1 | *Pinnularia cruciformis* (Donkin) Cleve | E3 |

*Diploneis crabo* (Ehrenberg) | E3 | *Pinnularia rectangulata* (Greg.) Rabenhorst | E3 |

*Diplopsalis lenticula* (Bergh) | T3 | *Podolampas palmipes* (Stein) | E3 |

*Exuviaella baltica* (Lohmann) | P1 | *Polykrikos kofoidii* (Chatton) | S1 |

*Glenodinium cinctum* (Ehrenberg) | T1 | *Pomatodinium impatiens (Cachon &Cachon)* | T1 |

*Glenodinium monensis* (Herdman) | E3 | *Pontosphaera achillae* (Kamptner) | T2 |

*Gonyaulax fragilis* (Schütt) Kofoid | T3 | *Pontosphaera haeckeli* (Lohmann) | E2 |

*Gonyaulax milneri* (Kofoid) | P2 | *Prorocentrum balticum* (Lohmann) *Loeblich* | S1 |

*Gonyaulax mitra* (Schütt) Kofoid | P3 | *Prorocentrum dentatum* (Stein) | T1 |

*Gonyaulax tamarensis* (Lebour) | T3 | *Prorocentrum gracile* (Schütt) | S1 |

| | | |

*Prorocentrum minimum* (Pavil.) Schiller | T2 | *TWO SAMPLE UNITS* | ^{*}Gulfs/Season |

*Prorocentrum ovum* (Schiller) Dodge | S1 | | |

*Protoceratium aerolatum* (Kofoid) | S3 | *Alexandrium pseudogonyaulax* (Biecheler) | T2, T3 |

*Protoceratium pepo* (Kofoid & Michener) | T3 | *Algirosphaera robusta* (Lohmann) Norris | T2, T3 |

*Protoperidinium bipes* (Paulsen) Balech | T3 | *Amphora hyaline* (Kützing) | E2, P3 |

*Protoperidinium conicum* (Gran) Balech | T2 | *Calyptrosphaera dalmatica* (Schiller) | S3, T3 |

*Protoperidinium marielebourae* (Paulsen) *Balech* | S1 | *Centrodinium intermedium* (Pavillard) | S3, S1 |

*Protoperidinium oceanicum* (Vanhoffen) | S1 | *Chaetoceros anastomosans* (Grunow) | S2, P2 |

*Protoperidinium quarnerense* (Schröder) | S3 | *Cocconeis speciosa* (Gregory) | E1, P2 |

*Pseudo-nitzschia granii* (Hasle) | P2 | *Cochlodinium brandti* (Wulff) | E3, T3 |

*Pseudo-nitzschia subcurvata* (Hasle) | P2 | *Corisphaera corona* (Kamptner) | P3, P1 |

*Pseudo-nitzschia turgidula* (Hustedt) | E3 | *Deutschlandia cinera* (Lecal) | S1, T1 |

*Pyrocystis elegans* (Pavillard) | S1 | *Diploneis bombus* (Ehrenberg) Cleve | S2, E1 |

*Pyrocystis lunula* (Schütt) Schütt | S3 | *Diploneis lineata* (Donkin) Cleve | E3, E2 |

*Rhabdonema adriaticum* (Kützing) | P3 | *Fragilaria crotonensis* (Kitton) | S1, E2 |

*Rhabdonema arcuatum* (Lyngbye) Kützing | T1 | *Goniaudoma spaericum* (Murray & Whitting) | S2, S3 |

*Rhabdonema minutum* (Kützing) | P1 | *Gonyaulax elegans* (Rampi) | S1, P1 |

*Rhabdosphaera tubulosa* (Schiller) | T2 | *Gonyaulax ligustica* (Rampi) | S2, P2 |

*Rhaphoneis amphiceros* (Ehrenberg) | T3 | *Gonyaulax monacantha* (Pavillard) | P1, P2 |

*Rhizosolenia robusta* (Norman) | S3 | *Gymnodinium heterostriatum* (Kof.& Swezy) | E2, T3 |

*Sphaerocalyptra quandridentata* (Schiller) | S2 | *Gymnodinium placidum* (Herdman) | E1, P1 |

*Synedra superba* (Kützing) | E1 | *Gyrodinium instriatum* (Freud. & Lee) | P2, T1 |

*Synedra undulata* (Bailey) Gregory | S1 | *Lohmannosphaera cedrus* (Lecal) | S1, S2 |

*Syracolithus cordiformis* (Schiller) | S1 | *Navicula linearis* (Grunow) Boyer | E2, E3 |

*Syracolithus clypeatus* (Lecal) | E2 | *Navicula meniscus* (Schumann) | P2, T2 |

*Syracolithus pastillusus* (Lecal) | S3 | *Oxytoxum ligusticum* (Rampi) | S1, T1 |

*Syracolithus profundus* (Bernard) | T3 | *Oxytoxum punctulatum* (Rampi) | T1, T3 |

*Syracolithus schilleri* (Kamptner) | T2 | *Oxytoxum rampii* (Sournia) | P1, P3 |

*Syracosphaera prolongata* (Gran) | S2 | *Oxytoxum sphaeroideum* (Stein) | S1, S3 |

*Syracosphaera spinosa* (Lohmann) | P1 | *Oxytoxum tenuistriatum* (Rampi) | E1, T2 |

*Tergestiella adriatica* (Kamptner) | S1 | *Oxytoxum viride* (Schiller) | S3, P1 |

*Thalassionema bacillare* (Heiden) Kolbe | P2 | *Pachydinium verrucosum* (Schiller) | S2, S3 |

*Thalassiosira mendiolana* (Hasle & Heimdal) | S1 | *Palaeophalacroma unicinctum* (Schiller) | E1, P1 |

*Tropidoneis confusa* (spec. nova) | S3 | *Pontosphaera pellucida* (Lohmann) | S2, E2 |

*Umbilicosphaera mirabilis* (Lohmann) | E2 | *Pontosphaera syracusana* (Lohmann) | S1, P1 |

*Zygosphaera amoena* (Kamptner) | E3 | *Rhabdosphaera subopaca* (Bernard) | E2, P3 |

*Zygosphaera hellenica* (Kamptner) | S1 | *Surirella striatula* (Turpin) | E3, P2 |

*Zygosphaera minor* (Schlauder) | T2 | *Syracosphaera nodosa* (Kamptner) | S2, E3 |