, the family Aphorraiidae counts 2 genera including living shells, the family Rostellariidae counts 4 genera including living shells, the family Serapshidae counts 1 genera of living shells. As you understand, this number is not definitive as the taxonomy is continuously changing based on new available information and new scientific hypothesis from formal zoological institutions and collectors.
Said that, the full list of living species is the following:
Canarium Schumacher, 1817
Conomurex Bayle in P. Fischer, 1884
Laevistrombus Abbott, 1960
Lambis Röding, 1798
Lentigo Jousseaume, 1886
Lobatus Swainson, 1837
Macrostrombus Petuch, 1994
Maculastrombus Liverani, Maxwell, Dekkers, 2021
Margistrombus Bandel, 2007
Dolomena Wenz, 1940
Doxander Wenz, 1940
Euprotomus Gill, 1870
Mirabilistrombus Kronenberg, 1998
Neostrombus Liverani, Dekkers & S. J. Maxwell, 2021
Ophioglossolambis Dekkers, 2012
Persististrombus Kronenberg & Lee, 2007
Sinustrombus Bandel, 2007
Striatostrombus Dekkers & S. J. Maxwell, 2018
Strombus Linnaeus, 1758
Terestrombus Kronenberg & Vermeij, 2002
Thersistrombus Bandel, 2007
Gibberulus Jousseaume, 1888
Harpago Mörch, 1852
Labiostrombus Oostingh, 1925
Thetystrombus Dekkers, 2008
Titanostrombus Petuch, 1994
Tricornis Jousseaume, 1886
Tridentarius Kronenberg & Vermeij, 2002
Rimella Agassiz, 1841
Rimellopsis Lambiotte, 1979
Rostellariella Thiele, 1929
Tenuitibia Dekkers, 2020
Tibia Röding, 1798)
Varicospira Eames, 1952
Terebellum Röding, 1798
Aphorrais Da Costa, 1778
Arrhoges Gabb, 1868
Pelicaria Gray, 1857
Perissodonta Martens, 1878
Struthiolaria Lamarck, 1816
Tylospira G. F. Harris, 1897