1782) (Namibia to Eastern Cape) Black mussel, Choromytilus meridionalis (Krauss, 1848) (Namibia to Tsitsikamma) Half-hairy mussel, Gregariella petagnae (Scacchi, 1832) (Namibia to central KwaZulu-Natal) Mediterranean mussel, Mytilus galloprovincialis Lamarck, 1819 (Orange River to Eastern Cape) Brown mussel, Perna perna (Linne, 1758) (Cape Point to Mozambique) Order Arcida Family Arcidae – ark clams Oblique ark shell, Barbatia obliquata (Gray, 1837) (Cape Columbine to Mozambique) Order Pteriida Family Pinnidae – pen shells Horse mussel, Atrina squamifera (Sowerby, 1835) (Cape Columbine to Eastern Cape) Order Ostreida Family Ostreidae – true oysters Ostrea atherstonei Newton, 1913 (Saldanha Bay to KwaZulu-Natal south coast) Cape rock oyster, Crassostrea margaritacea (Lamarck, 1819) (Cape Point to Mozambique) Order Pectinida Family Pectinidae – scallops Dwarf fan shell, Chlamys tincta (Reeve, 1853) (Cape Columbine to Mozambique) South African scallop, Pecten sulcicostatus Sowerby II, 1842 (Cape Point to Eastern Cape) Order Limida Family Limidae – file shells File shell, Limaria tuberculata (Olivi, 1792) (Cape Columbine to KwaZulu-Natal south coast) Order Venerida Family Mactridae – trough shells Otter shell, Lutraria lutraria (Linne, 1758) (Namibia to Eastern Cape) Smooth trough shell, Mactra glabrata Linne, 1767 (Cape Columbine to Mozambique) Angular surf clam, Scissodesma spengleri (Linne, 1767) (Cape Point to Eastern Cape) Order Carditida Family Carditidae Dead man's hands, Thecalia concamerata (Gmelin, 1791) (Port Nolloth to Transkei) Order unassigned, Euheterodonta Family Solenidae Pencil bait, Solen capensis P. Fischer, 1881 (Namaqualand to Eastern Cape) Order Venerida Family Lasaeidae Dwarf rusty clam, Lasaea adansoni turtoni Bartsch, 1915 (Cape Point to Mozambique)Gmelin 1791 Tellinidae Ridged tellin, Gastrana matadoa (Gmelin, 1791) (Cape Point to northern KwaZulu-Natal) Port Alfred tellin, Tellina alfredensisBartsch, 1915 Linnaeus 1758 (Cape Point to KwaZulu-Natal south coast) Gilchrist's tellin, Tellina gilchristi Sowerby, 1904 (Cape Columbine to Eastern Cape) Tellina trilatera Gmelin, 1791 (Orange river to Transkei) family Veneridae – Venus shells Heart clam, Dosinia lupinus orbignyi Dunker, 1845 (Namibia to Eastern Cape) Zigzag clam, Pitar abbreviatus Krauss, 1848 (Cape Point to Mozambique) Mottled venus, Sunetta contempta bruggeni Fischer & Piette, 1974 (Cape Point to northern KwaZulu-Natal) Streaked sand clam, Tivela compressa (Sowerby, 1851) (Cape Point to Eastern Cape) Corrugated venus, Venerupis corrugatus (Gmelin, 1791) (Namibia to central KwaZulu-Natal) accepted as Venerupis senegalensis Warty venus, Venus verrucosa Linnaeus, 1758 (Namibia to Mozambique) Polyplacophora – chitons Order Chitonida Family Ischnochitonidae Textile chiton, Ischnochiton textilis (Gray, 1828) (Namibia to central KwaZulu-Natal) Dwarf chiton, Ischnochiton oniscus (Krauss, 1848) (Cape Columbine to Mozambique) Ribbed scale chiton, Ischnochiton bergoti (Velain, 1877)