BioStor
 | The nomenclature of the Hydromedusae T D A Cockerell (1911) Proceedings of The Biological Society of Washington 24: 77-86 |
 | Das System der Coelenterata F Poche (1914) Archiv fuer Naturgeschichte 80: 47-128 |
 | XII.—Notes from the Gatty Marine Laboratory, St. Andrews.—No. XLII (1919) Annals And Magazine of Natural History 3: 125-164 |
 | 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 |