Grandidieria burtoni singularis J.R. Bourguignat, 1888 Lake Tanganyika
Grandidieria burtoni smithi J.R. Bourguignat, 1885 Lake Tanganyika
Radiatula caerulea (I. Lea, 1831) Mandalay, Myanmar
Unio caffer (C.F.F. von Krauss, 1848) South Africa
Nephronaias calamitarum (P.M.A. Morelet, 1849) Guatemala
Barynaias caldwellii (I. Lea, 1858) Nicaragua
Anodonta californiensis I. Lea, 1852 Nevada, Carson River
Sphenonaias callosa (I. Lea, 1841) Ohio, Franklin County
Physunio cambodiensis (I. Lea, 1856) Cambodia60 mm
Pseudodon cambodjensis (S.A.A. Petit De La Saussaye, 1865) Thailand
Pseudodon cambodjensis tenerrimus R.A.M. Brandt, 1974 Thailand
Leoparreysia canefrii Vikhrev, Bolotov& Kondakov, 2017
Potamilus capax J. Green, 1832 USA, Ohio
Cuneopsis capitatus (P.M. Heude) Poyang Lake, Jiangxi, China128 mm
Dysnomia capsaeformis (I. Lea, 1834) Alabama33 mm
Lampsilis cardium C.S. Rafinesque, 1820 Pennsylvania90 mm
Solenaia carinata (P.M. Heude, 1877) Jiujiang, Jiangxi, China266 mm
Pilsbryoconcha carinifera (T.A. Conrad, 1837) Senegal, Dakar
Lampsilis cariosa (T. Say, 1817) Pennsylvania86 mm
Uniomerus carolinianus (L.A.G. d'A. Bosc, 1801) USA, Georgia
Unio carteri (FOSSIL) Hislop, 1859 †
Anodonta cataracta T. Say, 1817 USA, Georgia120 mm
Caudiculatus caudiculatus (E.C. Von Martens, 1866) Malaysia, Borneo
Lamprotula caveata (P.M. Heude, 1877) Dongting lake, Hunan, China128 mm
Cuneopsis celtiformis (P.M. Heude, 1874) Poyang Lake, Jiangxi, China99 mm
Fusconaia cerina (T.A. Conrad, 1838) Alabama41 mm
Nephronaias championi (E.C. Von Martens, 1900) Guatemala
Pseudodon chaperi (J.J.M. de Morgan, 1885) Malaysia, Perak
Radiatula chaudhurii H.B. Preston, 1912 Myanmar
Nitia chefneuxi (H. Neuville& J.G. Anthony, 1906) Kenya, Turkana Lake
Acuticosta chinensis (I. Lea, 1868) Poyang Lake, Jiangxi, China66 mm
Acuticosta chinensis laevis (P.M. Heude, 1883) Han River, Shanyang, China33 mm
Acuticosta chinensis squammosus (P.M. Heude, 1883) Poyang Lake, Jiangxi, China29,3 mm
Scabies chinensis Y.Y. Liu, Y.H. Duan& K.Y. Lai, 1991 China, Guangdong province
Elliptio chipolaensis B. Walker, 1905 Florida44 mm