• Tmetonyx Stebbing, 1906
• Tmetonyx acutus (G.O. Sars, 1891)
• Tmetonyx albidus (G.O. Sars, 1891)
• Tmetonyx barentsi Gurjanova, 1929 accepted as Tryphosella barentsi (Gurjanova, 1929)
• Tmetonyx bruuni Reid, 1951 accepted as Hippomedon bruuni (Reid, 1951)
• Tmetonyx bruzelii Boeck, 1861 accepted as Tmetonyx cicada (Fabricius, 1780)
• Tmetonyx caeculus (G.O. Sars, 1891) accepted as Caeconyx caeculus (G.O. Sars, 1891)
• Tmetonyx cicada (Fabricius, 1780)
• Tmetonyx cicadopsis Schellenberg, 1926 accepted as Tryphosella cicadopsis (Schellenberg, 1926) accepted as Uristidae incertae sedis cicadopsis (Schellenberg, 1926)
• Tmetonyx dilatata (Chevreux, 1903)
• Tmetonyx exiguus (Chevreux, 1902) accepted as Tmetonyx nardonis (Heller, 1867)
• Tmetonyx gracilipes Stephensen, 1925 accepted as Tryphosella gracilipes (Stephensen, 1925) accepted as Tryphosidae incertae sedis gracilipes (Stephensen, 1925)
• Tmetonyx gulosa (Krøyer, 1845) accepted as Tmetonyx gulosus (Krøyer, 1845)
• Tmetonyx gulosus (Krøyer, 1845)
• Tmetonyx lebedi (Gurjanova, 1962)
• Tmetonyx leucophthalmus (G.O. Sars, 1891)
• Tmetonyx longichela Stephensen, 1925 accepted as Tryphosella longichela (Stephensen, 1925)
• Tmetonyx longitelson K.H. Barnard, 1932 accepted as Tryphosella longitelson (K.H. Barnard, 1932)
• Tmetonyx miersi (Stebbing, 1888) accepted as Tryphosella miersi (Stebbing, 1888) accepted as Photosella miersi (Stebbing, 1888)
• Tmetonyx mucronatus Pirlot, 1936 accepted as Tryphosella mucronata (Pirlot, 1936) accepted as Photosella mucronata (Pirlot, 1936)
• Tmetonyx nardonis (Heller, 1867)
• Tmetonyx nobilis (Stimpson, 1853) accepted as Psammonyx nobilis (Stimpson, 1853) accepted as Wecomedon nobilis (Stimpson, 1853)
• Tmetonyx norbiensis Oleröd, 1987
• Tmetonyx norvegicus Liljeborg, 1851 accepted as Tmetonyx cicada (Fabricius, 1780)
• Tmetonyx orchomenoides Stephensen, 1925 accepted as Tryphosella orchomenoides (Stephensen, 1925)
• Tmetonyx palpiserrata Bellan-Santini, 1985
• Tmetonyx paramoi Schellenberg, 1931 accepted as Uristes paramoi (Schellenberg, 1931)
• Tmetonyx quadratus Kunkel, 1918 accepted as Tmetonyx nobilis (Stimpson, 1853) accepted as Psammonyx nobilis (Stimpson, 1853) accepted as Wecomedon nobilis (Stimpson, 1853)
• Tmetonyx rotundatus Chevreux, 1926
• Tmetonyx serratus Schellenberg, 1931 accepted as Tryphosella schellenbergi Lowry & Bullock, 1976 accepted as Uristes schellenbergi (Lowry & Bullock, 1976)
• Tmetonyx similis (G.O. Sars, 1891)
• Tmetonyx stebbingi (Walker, 1903) accepted as Uristes stebbingi (Walker, 1903) accepted as Tryphosella stebbingi (Walker, 1903)
• Tmetonyx stephenseni Chevreux, 1935 (unaccepted > nomen nudum)