Cyperus michelianus (L.) Link
Cyperus rotundus L.
Cyphocaris anonyx Boeck, 1871
Cyprinus carpio Linnaeus, 1758
Cyrtarachne ixoides (Simon, 1870)
Cyrtaspis scutata (Charpentier, 1825)
Cyrtomium falcatum (L.fil.) C. Presl
Cyrtophora citricola (Forsskål, 1775)
Cyrtus gibbus (Fabricius, 1794)
Cystoderma fallax A.H. Sm. & Singer 1945
Cystodermella granulosa (Batsch) Harmaja 2002
Cystopteris diaphana (Bory) Blasdell
Cystopteris dickieana R. Sim
