BioStor
 | Das System der Coelenterata F Poche (1914) Archiv fuer Naturgeschichte 80: 47-128 |
 | Hydromedusae from the Discovery Collections (1957) Discovery Reports 29: 1-128 |
 | The Hydrozoa of the south and west coasts of South Africa. Part 3. The Gymnoblastea and small families of Calyptoblastea N A H Millard (1966) Annals of The South African Museum 48: 427-487 |
 | Hydroids and medusae of the family Companulariidae recorded from the eastern north Atlantic, with a world synopsis of genera P F S Cornelius (1982) Bulletin of the British Museum (Natural History) Zoology 42(2): 37-148 |