Heptacyclus albus (Epshtein & S. Y. Utevsky, 1996) accepted as Oceanobdella alba (Epshtein & S. Y. Utevsky, 1996)
Heptacyclus brunneus (Johansson, 1896)
Heptacyclus scorpii (Malm, 1863) accepted as Janusion scorpii (Malm, 1863)
Malmiana brunnea (Johansson, 1896) accepted as Heptacyclus brunneus (Johansson, 1896)
Malmiana scorpii (Malm, 1863) accepted as Janusion scorpii (Malm, 1863)
Mysidobdella borealis (Johansson, 1898)
Myzobdella lugubris Leidy, 1851
Notostomum laeve Levinsen, 1882
Oceanobdella alba (Epshtein & S. Y. Utevsky, 1996)
Oceanobdella microstoma (Johansson, 1896)
Platybdella anarrhichae (Diesing, 1859)
Platybdella fabricii (Malm, 1863)
Platybdella olriki (Malm, 1865)