List of eukaryotic species that belong to picoplankton, i.e. which have one of their cell dimensions smaller than 3 µm.
Stichococcus cylindricus (Butcher), 3 - 4.5 µm, brackish
Marsupiomonas pelliculata (Jones et al.), 3 - 3 µm, brackish-marine
Resultor micron (Moestrup), 1.5 - 2.5 µm, marine
Bathycoccus prasinos (Eikrem et Throndsen), 1.5 - 2.5 µm, marine
Crustomastix stigmatica (Zingone), 3 - 5 µm, marine
Dolichomastix lepidota (Manton), 2.5 - 2.5 µm, marine
Dolichomastix eurylepidea (Manton), 3 µm, marine
Dolichomastix tenuilepis (Throndsen et Zingone), 3 - 4.5 µm, marine
Mantoniella squamata (Desikachary), 3 - 5 µm, marine
Micromonas pusilla (Manton et Parke), 1 - 3 µm, marine
Ostreococcus tauri (Courties et Chrétiennot-Dinet), 0.8 - 1.1 µm, marine
Picocystis salinarum (Lewin), 2 - 3 µm, hypersaline
Prasinococcus capsulatus (Miyashita et Chihara), 3 - 5.5 µm, marine
Prasinoderma coloniale (Hasegawa et Chihara), 2.5 - 5.5 µm, marine
Pseudoscourfieldia marina (Manton), 3 - 3.5 µm, marine
Pycnococcus provasolii (Guillard), 1.5 - 4 µm, marine
Pyramimonas virginica (Pennick), 2.7 - 3.5 µm, marine
Chlorella nana (Andreoli et al.), 1.5 - 3 µm, marine
Picochlorum oklahomensis (Henley et al.), 2 - 2 µm, hypersaline
Picochlorum atomus (Henley et al.), 2 - 3 µm, brackish
Picochlorum eukaryotum (Henley et al.), 3 - 3 µm, marine
Picochlorum maculatus (Henley et al.), 3 - 3 µm, brackish
Hillea marina (Butcher), 1.5 - 2.5 µm, marine
Chrysochromulina tenuisquama (Estep et al.), 2 - 5 µm, marine
Chrysochromulina minor (Parke et Manton), 2.5 - 7.5 µm, marine
Chrysochromulina apheles (Moestrup et Thomsen), 3 - 4 µm, marine
Dicrateria inornata (Parke), 3 - 5.5 µm, marine
Ericiolus spiculiger (Thomsen), 3 - 3.8 µm, marine
Imantonia rotunda (Reynolds), 2 - 4 µm, marine
Phaeocystis cordata (Zingone), 3 - 4 µm, marine
Phaeocystis pouchetii (Lagerheim), 3 - 8 µm, marine
Trigonaspis minutissima (H.A.Thomsen), 2 - 3.6 µm, marine
Minidiscus comicus (Takano), 2 - 7 µm, marine
Minidiscus trioculatus (Hasle), 2.5 - 3.8 µm, marine
Minidiscus spinulosus (Gao, Chang et Chin), 3 - 5 µm, marine
Minidiscus chilensis (Rivera), 3 - 7.5 µm, marine
Minutocellus polymorphus (Hasle, von Stosch et Syverstsen), 2 - 30 µm, marine
Minutocellus scriptus (Hasle, von Stosch et Syverstsen), 3 - 36 µm, marine
Skeletonema menzelii (Guillard, Carpenter et Reimann), 2 - 7 µm, marine
Skeletonema pseudocostatum (Medlin), 2 - 9 µm, marine
Skeletonema japonicum (Zingone et Sarno), 2 - 10 µm, marine
Skeletonema grethae (Zingone et Sarno), 2 - 10.5 µm, marine
Skeletonema marinoi (Sarno et Zingone), 2 - 12 µm, marine
Thalassiosira pseudonana (Hasle et Heimdal), 2.3 - 5.5 µm, marine
Bolidomonas pacifica (Guillou et Chrétiennot-Dinet), 1 - 1.7 µm, marine
Bolidomonas mediterranea (Guillou et Chrétiennot-Dinet), 1 - 1.7 µm, marine
Ollicola vangoorii (Conrad (Vors)), 2.5 - 5 µm, marine
Tetraparma pelagica (Booth et Marchant), 2.2 - 2.8 µm, marine
Tetraparma insecta (Bravo-Sierra et Hernández-Becerril), 2.8 - 3.8 µm, marine
Triparma laevis (Booth), 2.2 - 3.1 µm, marine
Triparma columacea (Booth), 2.3 - 4.7 µm, marine
Triparma retinervis (Booth), 2.7 - 4.5 µm, marine
Florenciella parvula (Eikrem), 3 - 6 µm, marine
Nannochloropsis granulata (Karlson et Potter), 2 - 4 µm, marine
Nannochloropsis salina (Hibberd), 3 - 4 µm, brackish
Nannochloropsis oceanica (Suda et Miyashita), 3 - 5 µm, marine
Aureococcus anophagefferens (Hargraves et Sieburth), 1.5 - 2 µm, marine
Aureoumbra lagunensis (Stockwell et al.), 2.5 - 5 µm, marine
Pelagococcus subviridis (Norris), 2.5 - 5.5 µm, marine
Pelagomonas calceolata (Andersen et Saunders), 2 - 3 µm, marine
Pinguiochrysis pyriformis (Kawachi), 1 - 3 µm, marine
Pinguiococcus pyrenoidosus (Andersen et al.), 3 - 8 µm, marin
Massisteria marina (Larsen et Patterson), 2.5 - 6.5 µm, marine
Phagomyxa odontellae (Kühn, Schnepf & Bulman), 3 - 4 µm, marine
Caecitellus parvulus (Patterson et al.), 3 - 10 µm, marine
Pseudobodo minima (Ruinen), 2 µm, marine
Symbiomonas scintillans (Guillou et Chrétiennot-Dinet), 1.2 - 1.5 µm, marine
Paraphysomonas imperforata (Lucas), 1.7 - 5.1 µm, marine
Paraphysomonas corbidifera (Pennick and Clarke), 2 - 3.25 µm, marine
Paraphysomonas antarctica (Takahashi), 2 - 4.3 µm, marine
Paraphysomonas caelifrica (Preisig and Hibberd), 2.5 - 5 µm, marine
Paraphysomonas cribosa (Lucas), 3 - 4 µm, marine
Paraphysomonas sideriophora (Thomsen), 3 - 5 µm, marine
Paraphysomonas capreolata (Preisig and Hibberd), 3 - 6.5 µm, marine
Paraphysomonas gladiata (Preisig and Hibberd), 3 - 8 µm, marine
Picophagus flagellatus (Guillou et Chrétiennot-Dinet), 1.4 - 2.5 µm, marine
List of eukaryotic picoplankton species Wikipedia (Text) CC BY-SA