Turritella chancellorensis (FOSSIL) (Oleksyshyn, 1959 †) USA, Maryland, Saint Mary's48 mm
Turritella chicoensis (FOSSIL) W.M. Gabb, 1864 † United States, California, Orange
Turritella chipolana (FOSSIL) W.H. Dall, 1892 † Florida
Turritella chira (FOSSIL) A.A. Olsson, 1928 † Peru, Piura, Sullana
Turritella chordata H.H. Suter, 1908
Turritella chrysotoxa J.R. le B. Tomlin, 1925 South Africa, Natal, Durban Bay16,1 mm
Turritella cingulata G.B. I Sowerby, 1825 Chile, Arica41 mm
Turritella cingulifer (FOSSIL) Sowerby, 1825 †
Turritella cingulifera G.B. I Sowerby, 1825 Philippines, Olango Island18 mm
Turritella cingulifera filiola (FOSSIL) M. Yokoyama, 1928 † Okinawa13 mm
Turritella circumdata (FOSSIL) G.P. Deshayes, 1861 † France, Paris Basin
Turritella clarionensis L.G. Hertlein& A.M. Strong, 1951 Ecuador82 mm
Turritella clathratula (FOSSIL) Wood, 1847 † UK, England, East Riding of Yorkshire
Turritella cobbani (FOSSIL) Kirkland, 1996 †
Turritella cochlea L.A. Reeve, 1849 West Sahara46 mm
Turritella cochlias (FOSSIL) J.F. Bayan, 1873 † Denmark
Turritella cochliasthetis (FOSSIL) Orbigny, 1852 † France, Aquitaine
Turritella cocoditana (FOSSIL) F. Hodson, 1926 † Colombia, La Guajira, Uribia
Turritella coemansi (FOSSIL) Briart & Cornet, 1887 † Ukraine
Turritella columnaris L.C. Kiener, 1844 Arab Emirates65,4 mm
Turritella communis A. Risso, 1826 Spain, Almeria32 mm
Turritella comptus (FOSSIL) G.P. Deshayes, 1861 † France, Paris Basin
Turritella congelata A. Adams & L.A. Reeve,1849 Philippines, Camotes Islands10,4 mm
Turritella conofaciata (FOSSIL) F. Sacco, 1895 † Greece, Epirus and Western Macedonia
Turritella conoidea (FOSSIL) Sowerby, 1814 † UK, England, Hampshire
Turritella conquistadorana (FOSSIL) G.D. Hanna & Israelsky,1925 † Peru, Payta
Turritella conspera Adams & L.A. Reeve, 1850
Turritella conspersa A. Adams & L.A. Reeve,1849 Senegal, Dakar50 mm
Turritella contracta (FOSSIL) Sowerby, 1850 † France, Paris Basin
Turritella cookei W.C. Mansfield, 1930 Florida, Leon County
Turritella cooperi Carpenter, 1864 Mexico, Baja California
Turritella coreanica (T. Kotaka, 1951) Senegal, Dakar
Turritella cornea J.B.P.A. Lamarck, 1822
Turritella coursisi I. Marche-Marchad, 1959 Senegal, Dakar
Turritella couteaudi J.F. Mabille& A. de Rochebrune, 1889