Bythotrephes Leydig, 1860 (basis of record)
Dreissena rostriformis (Deshayes, 1838) † (basis of record)
Dreissena rostriformis bugensis Andrusov, 1897 accepted as Dreissena bugensis Andrusov, 1897 (basis of record)
Evadne anonyx G.O. Sars, 1897 (basis of record)
Gammarus lacustris G.O. Sars, 1863 (basis of record)
Gmelinoides fasciatus (Stebbing, 1899) (additional source)
Perccottus Dybowski, 1877 (basis of record)
Perccottus glenii Dybowski, 1877 (basis of record)
Prostoma putelale Beauchamp, 1932 accepted as Prostoma puteale Beauchamp, 1932 (basis of record)

East Gulf of Finland for Acartia bifilosa (Giesbrecht, 1881) 
East Gulf of Finland for Balanus improvisus Darwin, 1854 
East Gulf of Finland for Bythotrephes Leydig, 1860 
East Gulf of Finland for Centropages hamatus (Lilljeborg, 1853) 
East Gulf of Finland for Cercopagis (Cercopagis) pengoi (Ostroumov, 1891) 
East Gulf of Finland for Chaetogammarus warpachowskyi (G.O. Sars, 1894) 
East Gulf of Finland for Chironomidae 
East Gulf of Finland for Cladophora glomerata (Linnaeus) Kützing, 1843 
East Gulf of Finland for Dreissena polymorpha (Pallas, 1771) 
East Gulf of Finland for Dreissena rostriformis bugensis Andrusov, 1897 
East Gulf of Finland for Eurytemora Giesbrecht, 1881 
East Gulf of Finland for Evadne anonyx G.O. Sars, 1897 
East Gulf of Finland for Evadne nordmanni Lovén, 1836 
East Gulf of Finland for Gammarus lacustris G.O. Sars, 1863 
East Gulf of Finland for Jaera sarsi Valkanov, 1936 
East Gulf of Finland for Macoma balthica (Linnaeus, 1758) 
East Gulf of Finland for Marenzelleria neglecta Sikorski & Bick, 2004 
East Gulf of Finland for Monoporeia affinis (Lindström, 1855) 
East Gulf of Finland for Perccottus glenii Dybowski, 1877 
East Gulf of Finland for Pontogammarus robustoides (Sars, 1894)  (origin: alien)
East Gulf of Finland for Prostoma putelale Beauchamp, 1932 
East Gulf of Finland for Pseudocuma (Stenocuma) graciloides Sars, 1894 
East Gulf of Finland for Synchaeta Ehrenberg, 1832 
East Gulf of Finland for Temora Baird, 1850 
East Gulf of Finland for Tubificoides pseudogaster (Dahl, 1960) 
Russia for Jaera (Jaera) sarsi Valkanov, 1936  (origin: alien)
Russian part of the Gulf of Finland for Gmelinoides fasciatus (Stebbing, 1899)  (origin: alien)

 Spelling

 for Macoma balthica (Linnaeus, 1758)

often spelled M. baltica [details]