Rafinesque, 1814 Octopus rex Nateewathana & Norman, 1999: synonym of Amphioctopus rex (Nateewathana & Norman, 1999) Octopus robsoni Adam, 1941: synonym of Amphioctopus robsoni (Adam, 1941) Octopus robustus Brock, 1887: synonym of Hapalochlaena fasciata (Hoyle, 1886) Octopus roosevelti]' Stuart, 1941: synonym of Octopus oculifer Hoyle, 1904 Octopus ruber Rafinesque, 1814: synonym of Octopus vulgaris Cuvier, 1797 Octopus rufus Risso, 1854: synonym of Scaeurgus unicirrhus (Delle Chiaje [in de Férussac & d'Orbigny], 1841) Octopus salebrosus Sasaki, 1920: synonym of Sasakiopus salebrosus (Sasaki, 1920) Octopus saluzzii Naef, 1923: synonym of Octopus salutii Vérany, 1836 Octopus saluzzii Vérany, 1840: synonym of Octopus salutii Vérany, 1836 Octopus scorpio (Berry, 1920): synonym of Macrotritopus defilippi (Vérany, 1851) Octopus semipalmatus Owen, 1836: synonym of Tremoctopus violaceus delle Chiaje, 1830 Octopus siamensis Nateewathana & Norman, 1999: synonym of Amphioctopus siamensis (Nateewathana & Norman, 1999) Octopus smedleyi Robson, 1932: synonym of Amphioctopus aegina (Gray, 1849) Octopus sponsalis Fischer & Fischer, 1892: synonym of Bathypolypus sponsalis (P. Fischer & H. Fischer, 1892) Octopus striolatus Dong, 1976: synonym of Amphioctopus marginatus (Iw. Taki, 1964) Octopus taprobanensis Robson, 1926: synonym of Callistoctopus taprobanensis (Robson, 1926) Octopus tenuicirrus Sasaki, 1929: synonym of Octopus hongkongensis Hoyle, 1885 Octopus tetracirrhus Delle Chiaje, 1830: synonym of Pteroctopus tetracirrhus (Delle Chiaje, 1830) Octopus tetradynamus Rafinesque, 1814: synonym of Octopus vulgaris Cuvier, 1797 Octopus titanotus Troschel, 1857: synonym of Pteroctopus tetracirrhus (Delle Chiaje, 1830) Octopus tonganus Hoyle, 1885: synonym of Abdopus tonganus (Hoyle, 1885) Octopus tritentaculatus Risso, 1854: synonym of Octopus vulgaris Cuvier, 1797 Octopus troscheli Targioni-Tozzetti, 1869: synonym of Octopus vulgaris Cuvier, 1797 Octopus troschelii Targioni-Tozzetti, 1869: synonym of Octopus vulgaris Cuvier, 1797 Octopus tuberculatus Risso, 1854: synonym of Ocythoe tuberculata Rafinesque, 1814 Octopus tuberculatus Targioni-Tozzetti, 1869: synonym of Octopus vulgaris Cuvier, 1797 Octopus tuberculatus de Blainville, 1826: synonym of Octopus vulgaris Cuvier, 1797 Octopus unicirrhus Delle Chiaje [in de Férussac & d'Orbigny], 1841: synonym of Scaeurgus unicirrhus (Delle Chiaje [in de Férussac & d'Orbigny], 1841) Octopus varunae Oommen, 1971: synonym of Amphioctopus varunae (Oommen, 1971) Octopus velatus Rang, 1837: synonym of Tremoctopus violaceus delle Chiaje, 1830 Octopus velifer de Férussac, 1835: synonym of Tremoctopus violaceus delle Chiaje, 1830 Octopus veranyi Wagner, 1829: synonym of Ocythoe tuberculata Rafinesque, 1814 Octopus vincenti Pickford, 1955: synonym of Amphioctopus burryi (Voss, 1950) Octopus violaceus Risso, 1854: synonym of Ocythoe tuberculata Rafinesque, 1814 Octopus westerniensis d'Orbigny, 1834: synonym of Octopus superciliosus Quoy & Gaimard, 1832 Octopus winckworthi Robson, 1926: synonym