• Clymenia (Steno)
• Clymenia (Steno) attenuatus Flower, 1870 represented as Clymenia attenuatus Flower, 1882 accepted as Stenella attenuata (Gray, 1846)
• Delphinus (Steno)
• Delphinus (Steno) gadamu Owen, 1866 (uncertain > nomen dubium)
• Delphinus (Steno) lentiginosus Owen, 1866 accepted as Sousa plumbea (G. Cuvier, 1829)
• Delphinus (Steno) maculiventer Owen, 1846 (uncertain > nomen dubium)
• Delphinus (Steno) perspicillatus Peters, 1876 accepted as Steno bredanensis (G. Cuvier in Lesson, 1828)
• Steno Gray, 1846
• Steno (Sotalia)
• Steno (Sotalia) brasiliensis Trouessart, 1898 represented as Steno brasiliensis Trouessart, 1898 accepted as Sotalia fluviatilis (Gervais & Deville in Gervais, 1853)
• Steno (Sotalia) guianensis Trouessart, 1898 represented as Steno guianensis Trouessart, 1898 accepted as Sotalia guianensis (Van Beneden, 1864)
• Steno (Sotalia) guianensis Van Beneden, 1868 represented as Delphinus guianensis Van Beneden, 1864 accepted as Sotalia guianensis (Van Beneden, 1864)
• Steno (Sotalia) perniger Trouessart, 1898 (uncertain > nomen dubium)
• Steno (Sotalia) tucuxi Trouessart, 1898 represented as Steno tucuxi Trouessart, 1898 accepted as Sotalia fluviatilis (Gervais & Deville in Gervais, 1853)
• Steno (Sousa)
• Steno (Sousa) lentiginosus Gray, 1866 represented as Steno lentiginosus Gray, 1866 accepted as Sousa chinensis (Osbeck, 1765)
• Steno (Stenella) Gray, 1866 represented as Stenella Gray, 1866
• Steno attenuatus Gray, 1846 accepted as Stenella attenuata (Gray, 1846)
• Steno bradanensis (Lesson, 1828) accepted as Steno bredanensis (G. Cuvier in Lesson, 1828)
• Steno brasiliensis Trouessart, 1898 accepted as Sotalia fluviatilis (Gervais & Deville in Gervais, 1853)
• Steno bredanensis (G. Cuvier in Lesson, 1828)
• Steno brevimanus Gray, 1866 accepted as Stenella attenuata (Gray, 1846)
• Steno capensis Gray, 1865 accepted as Stenella attenuata (Gray, 1846)
• Steno chinensis Gray, 1871 accepted as Sousa chinensis (Osbeck, 1765)
• Steno consimilis Malm, 1871 accepted as Stenella attenuata (Gray, 1846)
• Steno fluviatilis Gray, 1866 accepted as Sotalia fluviatilis (Gervais & Deville in Gervais, 1853)
• Steno frontatus Blyth, 1863 accepted as Steno bredanensis (G. Cuvier in Lesson, 1828)
• Steno fuscus Gray, 1846 (uncertain > nomen dubium)
• Steno gadamu Gray, 1866 (uncertain > nomen dubium)
• Steno guianensis Trouessart, 1898 accepted as Sotalia guianensis (Van Beneden, 1864)
• Steno lentiginosus Blanford, 1891 accepted as Sousa chinensis (Osbeck, 1765)
• Steno lentiginosus Gray, 1866 accepted as Sousa chinensis (Osbeck, 1765)
• Steno malayanus Gray, 1866 (unaccepted > nomen nudum)
• Steno pallidus Gray, 1866 accepted as Sotalia fluviatilis (Gervais & Deville in Gervais, 1853)
• Steno perniger Blanford, 1891 (uncertain > nomen dubium)
• Steno perspicillatus True, 1889 accepted as Steno bredanensis (G. Cuvier in Lesson, 1828)
• Steno plumbeus Blanford, 1891 accepted as Sousa plumbea (G. Cuvier, 1829)
• Steno roseiventris Gray, 1866 accepted as Stenella longirostris (Gray, 1828)
• Steno rostratus Lutken, 1889 accepted as Steno bredanensis (G. Cuvier in Lesson, 1828)
• Steno tucaxi Van Beneden & Gervais, 1880 accepted as Sotalia fluviatilis (Gervais & Deville in Gervais, 1853)
• Steno tucuxi Gray, 1856 accepted as Sotalia fluviatilis (Gervais & Deville in Gervais, 1853)
• Steno tucuxi Trouessart, 1898 accepted as Sotalia fluviatilis (Gervais & Deville in Gervais, 1853)
• Stenobalaena Gray, 1874 accepted as Balaenoptera Lacépède, 1804
• Stenobates Esaki, 1927
• Stenobates australicus J. Polhemus & D. Polhemus, 1991
• Stenobates biroi Esaki, 1926
• Stenobates carpentaria J. Polhemus & D. Polhemus, 1991 accepted as Rheumatometroides carpentaria (J. Polhemus & D. Polhemus, 1991)
• Stenobates fakfak J. Polhemus & D. Polhemus, 1996
• Stenobates insularis J. Polhemus & Cheng, 1982 accepted as Rheumatometroides insularis (J. Polhemus & Cheng, 1982) J. Polhemus & D. Polhemus, 1996
• Stenobates kamojo J. Polhemus & D. Polhemus, 1996
• Stenobates kasim J. Polhemus & D. Polhemus, 1996
• Stenobates labuha J. Polhemus & D. Polhemus, 1996
• Stenobates langoban J. Polhemus & D. Polhemus, 1996
• Stenobates makraitos (Chen & Nieser, 1992)
• Stenobates sangihe J. Polhemus & D. Polhemus, 1996
• Stenobates zamboanga J. Polhemus & D. Polhemus, 1996
• Stenobatini J. Polhemus & D. Polhemus, 1993
• Stenobatopsis J. Polhemus & D. Polhemus, 1996
• Stenobatopsis stygius J. Polhemus & D. Polhemus, 1996
• Stenobermuda Schultz, 1979
• Stenobermuda acutirostrata Schultz, 1979
• Stenobermuda brucei Kensley & Schotte, 2002
• Stenobermuda iliffei Kensley, 1994
• Stenobermuda mergens Botosaneanu & Iliffe, 1999
• Stenobermuda syzygus (Barnard, 1940)
• Stenobermuda warooga Song & Bruce, 2018
• Stenobolus Carl, 1918
• Stenobolus insularis Carl, 1918
• Stenobothrium Diesing, 1850 accepted as Tentacularia Bosc, 1797
• Stenobothrium syngenes Pintner, 1928 accepted as Nybelinia syngenes (Pintner, 1928) Dollfus, 1930
• Stenobothrus Fischer, 1853
• Stenobothrus stigmaticus
• Stenobrachius Eigenmann & Eigenmann, 1890
• Stenobrachius leucopsarus (Eigenmann & Eigenmann, 1890)
• Stenobrachius nannochir (Gilbert, 1890)
• Stenobrochus Cooper, 1983 accepted as Stenosarina Cooper, 1977
• Stenobrochus crosnieri Cooper, 1983 accepted as Stenosarina crosnieri (Cooper, 1983)
• Stenocaecilius Mockford, 1999
• Stenocaecilius casarum (Badonnel, 1931)
• Stenocarabus Gravier, 1923 accepted as Cyphocarcinus A. Milne-Edwards, 1868
• Stenocarabus suspensus Gravier, 1923 accepted as Cyphocarcinus suspensus (Gravier, 1923)
• Stenocaris Sars G.O., 1909
• Stenocaris abyssalis Becker, Noodt & Schriever, 1979 accepted as Selenopsyllus abyssalis (Becker, Noodt & Schriever, 1979)
• Stenocaris arenicola Wilson C.B., 1932 accepted as Huysicaris arenicola (Wilson C. B., 1932)
• Stenocaris baltica Arlt, 1983 accepted as Vermicaris baltica (Arlt, 1983)
• Stenocaris figaroloensis Kim, Cho, Yoon & Lee, 2023
• Stenocaris gracilis Sars G.O., 1909
• Stenocaris intermedia Itô Tat, 1972
• Stenocaris kerguelenensis Bodiou, 1977 accepted as Navalonia kerguelenensis (Bodiou, 1977)
• Stenocaris kliei Kunz, 1938 accepted as Huysicaris kliei (Kunz, 1938)
• Stenocaris marcida Kim, Cho, Yoon & Lee, 2023
• Stenocaris minor (Scott T., 1893)
• Stenocaris minuta Nicholls, 1935 accepted as Vermicaris minuta (Nicholls, 1935)
• Stenocaris pontica Chappuis & Serban, 1953 accepted as Vermicaris pontica (Chappuis & Serban, 1953)
• Stenocaris pristina Wells, 1968 accepted as Stenocaropsis pristina (Wells, 1968)
• Stenocaris profundus Becker, Noodt & Schriever, 1979 accepted as Stenocaropsis profundus (Becker, Noodt & Schriever, 1979) accepted as Selenopsyllus profundus (Becker, Noodt & Schriever, 1979)
• Stenocaris pygmaea Noodt, 1955 accepted as Vermicaris pygmaea (Noodt, 1955)
• Stenocaris valkanovi Marinov, 1974 accepted as Stenocaropsis valkanovi (Marinov, 1974)
• Stenocaropsis Apostolov, 1982
• Stenocaropsis abyssalis (Becker, Noodt & Schriever, 1979) accepted as Selenopsyllus abyssalis (Becker, Noodt & Schriever, 1979)