Chaetoceros similis Cleve, 1896 (basis of record)
Chaetoceros socialis H.S.Lauder, 1864 (basis of record)
Corethron criophilum Castracane, 1886 (basis of record)
Corycaeidae Dana, 1846 (additional source)
Cryptophyta (additional source)
Evadne Lovén, 1836 (additional source)
Evadne nordmanni Lovén, 1836 (additional source)
Hillea fusiformis (J.Schiller) J.Schiller, 1926 (basis of record)
Navicula J.B.M. Bory de Saint-Vincent, 1822 (basis of record)
Nitzschia longissima (Brébisson) Ralfs, 1861 (basis of record)
Podonidae Mordukhai-Boltovskoi, 1968 (additional source)
Pseudo-nitzschia delicatissima (Cleve) Heiden, 1928 (basis of record)
Pseudo-nitzschia seriata (Cleve) H.Peragallo, 1899 (basis of record)
Thalassiosira leptopus (Grunow ex Van Heurck) Hasle & G.Fryxell, 1977 (basis of record)

North Sea for Acartia (Acartiura) clausi Giesbrecht, 1889 
North Sea for Acartia longiremis (Lilljeborg, 1853) 
North Sea for Anchialina agilis (G.O. Sars, 1877) 
North Sea for Calanus finmarchicus (Gunnerus, 1770) 
North Sea for Centropages hamatus (Lilljeborg, 1853) 
North Sea for Centropages typicus Krøyer, 1849 
North Sea for Ceratium tripos (O.F.Müller) Nitzsch, 1817 
North Sea for Chaetoceros similis Cleve, 1896 
North Sea for Chaetoceros socialis H.S.Lauder, 1864 
North Sea for Corethron criophilum Castracane, 1886 
North Sea for Cylindrotheca closterium (Ehrenberg) Reimann & J.C.Lewin, 1964 
North Sea for Distephanus speculum (Ehrenberg) Haeckel, 1887 
North Sea for Ditylum brightwellii (T.West) Grunow, 1885 
North Sea for Euterpina acutifrons (Dana, 1847) 
North Sea for Evadne nordmanni Lovén, 1836 
North Sea for Fragilaria H.C. Lyngbye, 1819 
North Sea for Hillea fusiformis (J.Schiller) J.Schiller, 1926 
North Sea for Hyperia galba (Montagu, 1813) 
North Sea for Leptocylindrus minimus Gran, 1915 
North Sea for Leucocryptos marina (Braarud) Butcher, 1967 
North Sea for Mesoporos perforatus (Gran) Lillick, 1937 
North Sea for Nitzschia longissima (Brébisson) Ralfs, 1861 
North Sea for Oikopleura Mertens, 1830 
North Sea for Paracalanus parvus (Claus, 1863) 
North Sea for Pleurobrachia pileus (O. F. Müller, 1776) 
North Sea for Proboscia alata (Brightwell) Sundström, 1986 
North Sea for Prorocentrum micans Ehrenberg, 1834 
North Sea for Pseudocalanus elongatus (Brady, 1865) 
North Sea for Pseudo-nitzschia delicatissima (Cleve) Heiden, 1928 
North Sea for Pseudo-nitzschia seriata (Cleve) H.Peragallo, 1899 
North Sea for Rhizosolenia hebetata Bailey, 1856 
North Sea for Roperia tesselata (Roper) Grunow ex Pelletan, 1889 
North Sea for Sagitta elegans Verrill, 1873 
North Sea for Skeletonema costatum (Greville) Cleve, 1873 
North Sea for Stellarima stellaris (Roper) G.R.Hasle & P.A.Sims, 1986 
North Sea for Synedra pelagica Hendey, 1937 
North Sea for Temora longicornis (Müller O.F., 1785) 
North Sea for Thalassionema nitzschioides (Grunow) Mereschkowsky, 1902 
North Sea for Thalassiosira antarctica Comber, 1896 
North Sea for Thalassiosira eccentrica (Ehrenberg) Cleve, 1904 
North Sea for Thalassiosira fallax Meunier, 1910 
North Sea for Thalassiosira gravida Cleve, 1896 
North Sea for Thalassiosira leptopus (Grunow ex Van Heurck) Hasle & G.Fryxell, 1977 

 Authority

 for Chroomonas marina Butcher, 1967

(Buttner) Butcher, 1967 [details]

 Distribution

 for Acontiophorus scutatus (Brady & Robertson, 1873)

British Isles; coast of English Channel; Faroes, west Norway; Mediterranean [details]

 Distribution

 for Oikopleura Mertens, 1830

Only identified at generic level. [details]

 Distribution

 for Rhodomonas G.Karsten, 1898

Rhodomonas sp. [details]