Fam. Cyclidiidae Ehrenberg, 1838

- Abathostoma Berger in Corliss, 1979 [jun. obj. syn. of Echinocyclidium]
- Cristigera Roux, 1899
- Cyclidium O.F. Müller, 1786 [1773]
- Echinocyclidium Jankowski, 1980
- Isocyclidium Esteban, Embley & Finlay, 1993
- Mesogymnus Berger in Corliss, 1979 [Berger, 1994]
- Paracyclidium Grolière, de Puytorac & Grain, 1980
- Paurotricha Dragesco & Dragesco-Kernéis, 1991 [syn. of Cristigera]
- Pseudocyclidium Small & Lynn, 1985