Austrobdella Badham, 1916 (basis of record)
Branchellion Savigny, 1822 (additional source)
Branchellion torpedinis Savigny, 1822 (basis of record)
Calliobdella van Beneden & Hesse, 1863 (basis of record)
Calliobdella nodulifera (Malm, 1863) (basis of record)
Hemibdella van Beneden & Hesse, 1863. Revised (basis of record)
Janusion Leigh-Sharpe, 1933 (additional source)
Janusion brunnea (Johansson, 1929) accepted as Heptacyclus brunneus (Johansson, 1896) (basis of record)
Janusion scorpii (Malm, 1863) (additional source)
Johanssonia Selensky, 1914 (basis of record)
Johanssonia arctica (Johansson, 1898) (basis of record)
Malmiana Strand, 1942 accepted as Heptacyclus Vasileyev, 1939 (basis of record)
Malmiana brunnea (Johansson, 1896) accepted as Heptacyclus brunneus (Johansson, 1896) (basis of record)
Malmiana scorpii (Malm, 1863) accepted as Janusion scorpii (Malm, 1863) (basis of record)
Mysidobdella Selensky, 1927 (basis of record)
Notostomum Levinsen, 1882 (additional source)
Oceanobdella Caballero, 1956 (basis of record)
Oceanobdella microstoma (Johansson, 1896) (basis of record)
Oceanobdella sexoculata (Malm, 1863) (basis of record)
Oxytonostoma Malm, 1863 (basis of record)
Oxytonostoma arctica Johansson, 1898 accepted as Johanssonia arctica (Johansson, 1898) (basis of record)
Oxytonostoma typica Malm, 1863 (additional source)
Ozobranchus Quatrefages, 1852 (additional source)
Ozobranchus margoi (Apáthy, 1890) (additional source)
Platybdella Malm, 1863 (basis of record)
Platybdella anarrhichae (Diesing, 1859) (basis of record)
Platybdella olriki (Malm, 1865) (basis of record)
Pontobdella Leach, 1815 (additional source)

Arctic Ocean for Janusion scorpii (Malm, 1863) 
Arctic Ocean for Oceanobdella microstoma (Johansson, 1896) 
Arctic Ocean for Oxytonostoma arctica Johansson, 1898 
Arctic Ocean for Oxytonostoma typica Malm, 1863 
European waters (ERMS scope) for Branchellion torpedinis Savigny, 1822 
European waters (ERMS scope) for Calliobdella nodulifera (Malm, 1863) 
European waters (ERMS scope) for Janusion brunnea (Johansson, 1929) 
European waters (ERMS scope) for Janusion scorpii (Malm, 1863) 
European waters (ERMS scope) for Oceanobdella microstoma (Johansson, 1896) 
European waters (ERMS scope) for Oceanobdella sexoculata (Malm, 1863) 
European waters (ERMS scope) for Oxytonostoma arctica Johansson, 1898 
European waters (ERMS scope) for Oxytonostoma typica Malm, 1863 
European waters (ERMS scope) for Ozobranchus margoi (Apáthy, 1890) 
European waters (ERMS scope) for Platybdella anarrhichae (Diesing, 1859) 
European waters (ERMS scope) for Platybdella olriki (Malm, 1865) 
Mediterranean Sea for Branchellion torpedinis Savigny, 1822 
Mediterranean Sea for Ozobranchus margoi (Apáthy, 1890)