• Armorhydra janowiczi Swedmark & Teissier, 1958
• Craspedacusta sowerbii Lankester, 1880
• Geryonia proboscidalis (Forsskål, 1775)
• Gonionemus vertens A. Agassiz, 1862
• Gonionemus vindobonensis Joseph, 1918 accepted as Gonionemus vertens A. Agassiz, 1862
• Gossea corynetes (Gosse, 1853) accepted as Octobulbacea corynetes (Gosse, 1853)
• Gossea faureae Picard, 1952 accepted as Octobulbacea faureae (Picard, 1952)
• Liriope tetraphylla (Chamisso & Eysenhardt, 1821)
• Maeotias inexpectata Ostroumoff, 1896 accepted as Maeotias marginata (Modeer, 1791)
• Maeotias marginata (Modeer, 1791)
• Microhydrula pontica Valkanov, 1965
• Monobrachium parasitum Mereschkowsky, 1877
• Octobulbacea corynetes (Gosse, 1853)
• Octobulbacea faureae (Picard, 1952)
• Olindias muelleri Haeckel, 1879
• Olindias phosphorica (sensu Delle Chiaje, 1841) accepted as Olindias muelleri Haeckel, 1879
• Rhaptapagis cantacuzenei Bouillon & Deroux, 1967
• Scolionema suvaense (Agassiz & Mayer, 1899)