• Tanais Latreille, 1831
• Tanais (Anatanais) Nordenstam, 1930 accepted as Anatanais Nordenstam, 1930
• Tanais (Anatanais) lineatus Nordenstam, 1930 accepted as Anatanais lineatus Nordenstam, 1930
• Tanais (Anatanais) marmoratus Nordenstam, 1930 accepted as Anatanais marmoratus Nordenstam, 1930 accepted as Zeuxo marmoratus (Nordenstam, 1930)
• Tanais (Tanais) Nordenstam, 1930 accepted as Tanais Latreille, 1831
• Tanais (Zeuxo) Sieg, 1978 accepted as Tanais Latreille, 1831
• Tanais abbreviatus Sars, 1868 accepted as Cryptocope abbreviata (Sars, 1868)
• Tanais abyssorum Nierstrasz, 1913 accepted as Synaptotanais abyssorum (Nierstrasz, 1913)
• Tanais adelaidensis Tait, Conlan & Dittmann, 2021
• Tanais aequiremis Lilljeborg, 1864 accepted as Typhlotanais aequiremis (Lilljeborg, 1864)
• Tanais alascensis Richardson, 1899 accepted as Arctotanais alascensis (Richardson, 1899)
• Tanais algiricus (unaccepted > nomen nudum)
• Tanais annectens Barnard, 1914 accepted as Singularitanais annectens (Barnard, 1914)
• Tanais brasiliensis Dana, 1849 accepted as Leptochelia brasiliensis (Dana, 1849)
• Tanais brevicornis Lilljeborg, 1864 accepted as Typhlotanais brevicornis (Lilljeborg, 1864)
• Tanais brevimanus Lilljeborg, 1864 accepted as Leptognathia brevimana (Lilljeborg, 1864) accepted as Araphura brevimanus (Lilljeborg, 1864)
• Tanais breviremis Lilljeborg, 1864 accepted as Leptognathia breviremis (Lilljeborg, 1864)
• Tanais cavolinii Milne Edwards, 1840 accepted as Tanais dulongii (Audouin, 1826)
• Tanais cavolinii Sars, 1882 not Milne Edwards, 1840 accepted as Tanais grimaldii Dollfus, 1897
• Tanais cavolinii Shiino, 1951 not Milne-Edwards, 1840 accepted as Tanais tinhauae Bamber & Bird, 1997
• Tanais chevreuxi Dollfus, 1898 accepted as Parasinelobus chevreuxi (Dollfus, 1898)
• Tanais chevreuxi Monod, 1925 not Dollfus, 1898 accepted as Tanais grimaldii Dollfus, 1897
• Tanais depressus Sars, 1868 accepted as Tanais aequiremis Lilljeborg, 1864 accepted as Typhlotanais aequiremis (Lilljeborg, 1864)
• Tanais dubius Krøyer, 1842 accepted as Leptochelia dubia (Krøyer, 1842) accepted as Chondrochelia dubia (Krøyer, 1842)
• Tanais dulongii (Audouin, 1826)
• Tanais Edwardsii Krøyer, 1842 accepted as Leptochelia edwardsii (Krøyer, 1842) accepted as Leptochelia savignyi (Krøyer, 1842) accepted as Chondrochelia savignyi (Kroyer, 1842)
• Tanais elongatus Dana, 1849 accepted as Paratanais elongatus (Dana, 1849)
• Tanais estuarius Pillai, 1954 accepted as Tanais stanfordi Richardson, 1901 accepted as Sinelobus stanfordi (Richardson, 1901)
• Tanais filiformis Lilljeborg, 1864 accepted as Leptognathia filiformis (Lilljeborg, 1864) accepted as Araphura filiformis (Lilljeborg, 1864)
• Tanais filum Stimpson, 1853 accepted as Leptochelia filum (Stimpson, 1853) accepted as Pseudoleptochelia filum (Stimpson, 1853) accepted as Pseudonototanais filum (Stimpson, 1853)
• Tanais fluviatilis Giambiagi, 1923 accepted as Tanais stanfordi Richardson, 1901 accepted as Sinelobus stanfordi (Richardson, 1901)
• Tanais forcipatus Lilljeborg, 1864 accepted as Paratanais forcipatus (Lilljeborg, 1864) accepted as Pseudotanais forcipatus (Lilljeborg, 1864)
• Tanais Gallardoi Giambiagi, 1922 accepted as Tanais dulongii (Audouin, 1826)
• Tanais gayi Nicolet, 1849
• Tanais gracilis Heller, 1865 not Krøyer, 1842 accepted as Anatanais gracilis (Heller, 1865) accepted as Zeuxoides helleri Sieg, 1980
• Tanais gracilis Krøyer, 1842 accepted as Leptognathia gracilis (Krøyer, 1842) accepted as Akanthophoreus gracilis (Krøyer, 1842)
• Tanais graciloides Lilljeborg, 1864 accepted as Leptognathia graciloides (Lilljeborg, 1864) accepted as Tanaopsis graciloides (Lilljeborg, 1864)
• Tanais grimaldii Dollfus, 1897
• Tanais herminiae Mañé-Garzón, 1943 accepted as Tanais stanfordi Richardson, 1901 accepted as Sinelobus stanfordi (Richardson, 1901)
• Tanais hirsutus Beddard, 1886 accepted as Anatanais hirsutus (Beddard, 1886) accepted as Archaeotanais hirsutus (Beddard, 1886) accepted as Allotanais hirsutus (Beddard, 1886)
• Tanais hirticaudatus Bate, 1861 (unaccepted > nomen nudum)
• Tanais islandicus Sars, 1877 accepted as Leptognathia longiremis (Lilljeborg, 1864) accepted as Akanthophoreus longiremis (Lilljeborg, 1864) accepted as Parakanthophoreus longiremis (Lilljeborg, 1864)
• Tanais kurilensis Shiino, 1964 (unaccepted > nomen nudum)
• Tanais litoralis Vanhöffen, 1914 accepted as Anatanais litoralis (Vanhöffen, 1914) accepted as Zeuxoides pseudolitoralis Sieg, 1980
• Tanais litoralis Vanhöffen, 1914 accepted as Anatanais litoralis (Vanhöffen, 1914) accepted as Pancoloides litoralis (Vanhöffen, 1914)
• Tanais longichelipes Lang, 1973 accepted as Leptochelia longichelipes (Lang, 1973)
• Tanais longiremis Lilljeborg, 1864 accepted as Leptognathia longiremis (Lilljeborg, 1864) accepted as Akanthophoreus longiremis (Lilljeborg, 1864) accepted as Parakanthophoreus longiremis (Lilljeborg, 1864)
• Tanais loricatus Bate, 1865
• Tanais macrocheles Nicolet, 1849
• Tanais neo-zelanica Thomson, 1879 accepted as Zeuxo novaezealandiae (Thomson, 1879)
• Tanais nierstraszi Stebbing, 1919 accepted as Anatanais nierstraszi (Stebbing, 1919) accepted as Allotanais hirsutus (Beddard, 1886)
• Tanais normani Richardson, 1905 accepted as Anatanais normani (Richardson, 1905) accepted as Zeuxo (Zeuxo) normani (Richardson, 1905) accepted as Zeuxo normani (Richardson, 1905)
• Tanais novaezealandiae Thomson, 1879 accepted as Anatanais novae-zealandiae (Thomson, 1879) accepted as Anatanais novaezealandiae (Thomson, 1879) accepted as Zeuxo (Zeuxo) novaezealandiae (Thomson, 1879) accepted as Zeuxo novaezealandiae (Thomson, 1879)
• Tanais novae-zealandiae Thomson, 1879 accepted as Tanais novaezealandiae Thomson, 1879 accepted as Anatanais novae-zealandiae (Thomson, 1879) accepted as Anatanais novaezealandiae (Thomson, 1879) accepted as Zeuxo (Zeuxo) novaezealandiae (Thomson, 1879) accepted as Zeuxo novaezealandiae (Thomson, 1879)
• Tanais nuwalianensis Tzeng & Hsueh, 2014
• Tanais oerstedii Krøyer, 1842 accepted as Heterotanais oerstedi (Krøyer, 1842) accepted as Heterotanais oerstedii (Krøyer, 1842)
• Tanais ohlini Stebbing, 1914 accepted as Anatanais ohlini (Stebbing, 1914) accepted as Zeuxoides ohlini (Stebbing, 1914)
• Tanais philetaerus Stebbing, 1904 accepted as Tanais stanfordi Richardson, 1901 accepted as Sinelobus stanfordi (Richardson, 1901)
• Tanais pongo Bamber, 2005
• Tanais robustus Moore, 1894 accepted as Anatanais robustus (Moore, 1894) accepted as Hexapleomera robusta (Moore, 1894)
• Tanais savignyi Krøyer, 1842 accepted as Leptochelia savignyi (Krøyer, 1842) accepted as Chondrochelia savignyi (Kroyer, 1842)
• Tanais seurati Nobili, 1906 accepted as Anatanais seurati (Nobili, 1906) accepted as Zeuxo (Parazeuxo) seurati (Nobili, 1906) accepted as Zeuxo seurati (Nobili, 1906)
• Tanais spongicola Barnard, 1914 accepted as Zeuxoides spongicola (Barnard, 1914)
• Tanais stanfordi Richardson, 1901 accepted as Sinelobus stanfordi (Richardson, 1901)
• Tanais sylviae Mello Leitão, 1941 accepted as Tanais stanfordi Richardson, 1901 accepted as Sinelobus stanfordi (Richardson, 1901)
• Tanais tenuicornis (Haswell, 1882) accepted as Zeuxo tenuicornis (Haswell, 1882)
• Tanais tenuimanus Lilljeborg, 1864 accepted as Typhlotanais tenuimanus (Lilljeborg, 1864)
• Tanais testudinicola Dollfus, 1898 accepted as Tanais robustus Moore, 1894 accepted as Anatanais robustus (Moore, 1894) accepted as Hexapleomera robusta (Moore, 1894)
• Tanais tinhauae Bamber & Bird, 1997
• Tanais tomentosus Krøyer, 1842 accepted as Tanais vittatus (Rathke, 1843) accepted as Tanais cavolinii Milne Edwards, 1840 accepted as Tanais dulongii (Audouin, 1826)
• Tanais vanis Miller, 1940
• Tanais vittatus (Rathke, 1843) accepted as Tanais cavolinii Milne Edwards, 1840 accepted as Tanais dulongii (Audouin, 1826)
• Tanais Vøringi Sars, 1877 accepted as Cryptocope Vøringii (Sars, 1877) accepted as Leptognathia vöringi (Sars, 1877) accepted as Paranarthrurella voeringi (Sars, 1877)
• Tanais Willemoësii Studer, 1884 accepted as Pseudotanais willemoesi (Studer, 1884) accepted as Langitanais willemoesi (Studer, 1884)
• Tanaisia Skrjabin, 1924
• Tanaisia (Lepidopteria) Nezlobinski, 1926 accepted as Tanaisia Skrjabin, 1924
• Tanaisia (Lepidopteria) gracioza Nezlobinski, 1926 accepted as Tanaisia gracioza (Nezlobinski, 1926) Teixeira de Freitas, 1951 accepted as Tanaisia atra (Nezlobinski, 1926) Byrd & Denton, 1950
• Tanaisia (Paratanaisia) Teixeira de Freitas, 1959 accepted as Paratanaisia Teixeira de Freitas, 1959
• Tanaisia (Paratanaisia) ectorchis Fischthal & Kuntz, 1976 accepted as Paratanaisia ectorchis Fischthal & Kuntz, 1976
• Tanaisia (Paratanaisia) megalecitha Gu, Qiu, Hua & Li, 1981 accepted as Paratanaisia megalecitha Gu, Qiu, Hua & Li, 1981
• Tanaisia (Tamerlania) Skrjabin, 1924 accepted as Tamerlania Skrjabin, 1924
• Tanaisia (Tamerlania) byrdentoni Teixeira de Freitas, 1951 accepted as Tamerlania byrdentoni (Teixeira de Freitas, 1951) Yamaguti, 1958
• Tanaisia (Tamerlania) exigua Teixeira de Freitas, 1951 accepted as Tamerlania exigua (Teixeira de Freitas, 1951) Yamaguti, 1958
• Tanaisia (Tamerlania) freitasiana Odening, 1963 accepted as Tamerlania freitasiana Odening, 1963
• Tanaisia (Tamerlania) incertae Teixeira de Freitas, 1951 accepted as Tamerlania incertae (Teixeira de Freitas, 1951) Yamaguti, 1958
• Tanaisia (Tamerlania) indica Singh, 1962 accepted as Tamerlania indica Singh, 1962
• Tanaisia (Tamerlania) inopinae Teixeira de Freitas, 1951 accepted as Tamerlania inopinae (Teixeira de Freitas, 1951) Yamaguti, 1958
• Tanaisia (Tamerlania) lagunensis Eduardo & Torres, 2005 accepted as Tamerlania lagunensis Eduardo & Torres, 2005
• Tanaisia (Tamerlania) magnicolica Teixeira de Freitas, 1951 accepted as Tamerlania magnicolica (Teixeira de Freitas, 1951) Yamaguti, 1958
• Tanaisia (Tamerlania) microrchis Gu, Qiu, Hua & Li, 1981 accepted as Tamerlania microrchis Gu, Qiu, Hua & Li, 1981
• Tanaisia (Tamerlania) minax Teixeira de Freitas, 1951 accepted as Tamerlania minax (Teixeira de Freitas, 1951) Yamaguti, 1958
• Tanaisia (Tamerlania) oviaspera Teixeira de Freitas, 1951 accepted as Tamerlania oviaspera (Teixeira de Freitas, 1951) Yamaguti, 1958
• Tanaisia (Tamerlania) parva Teixeira de Freitas, 1951 accepted as Tamerlania parva (Teixeira de Freitas, 1951) Yamaguti, 1958
• Tanaisia (Tamerlania) precaria Teixeira de Freitas, 1951 accepted as Tamerlania precaria (Teixeira de Freitas, 1951) Yamaguti, 1958
• Tanaisia (Tamerlania) similis Teixeira de Freitas, 1951 accepted as Tamerlania similis (Teixeira de Freitas, 1951) Yamaguti, 1958
• Tanaisia (Tamerlania) taiwanensis Fischthal & Kuntz, 1981 accepted as Tamerlania taiwanensis Fischthal & Kuntz, 1981
• Tanaisia (Tamerlania) valida Teixeira de Freitas, 1951 accepted as Tamerlania valida (Teixeira de Freitas, 1951) Yamaguti, 1958
• Tanaisia (Tamerlania) zarudnyi Skrjabin, 1924 accepted as Tamerlania zarudnyi Skrjabin, 1924
• Tanaisia (Tamerlania) zarudnyi vietnamensis Odening, 1963 accepted as Tamerlania zarudnyi vietnamensis Odening, 1963
• Tanaisia angusta Franco, 1965