text: Genus Hemitriakis Herre, 1923 Hemitriakis abdita L. J. V. Compagno & J. D. Stevens, 1993 (deep-water sickle-fin houndshark)
  Hemitriakis complicofasciata T. Takahashi & Nakaya, 2004 (ocellated topeshark)
  Hemitriakis falcata L. J. V. Compagno & J. D. Stevens, 1993 (sickle-fin houndshark)
  Hemitriakis indroyonoi W. T. White, L. J. V. Compagno & Dharmadi, 2009 (Indonesian houndshark)
  Hemitriakis japanica (J. P. Müller & Henle, 1839) (Japanese topeshark)
  Hemitriakis leucoperiptera Herre, 1923 (white-fin topeshark)
  Genus Hypogaleus J. L. B. Smith, 1957
  Hypogaleus hyugaensis (Miyosi, 1939) (black-tip tope)
  Genus Iago L. J. V. Compagno & S. Springer, 1971
  Iago garricki Fourmanoir & Rivaton, 1979 (long-nose houndshark)
  Iago omanensis (Norman, 1939) (big-eye houndshark)
  Genus Mustelus H. F. Linck, 1790
  Mustelus albipinnis Castro-Aguirre, Antuna-Mendiola, González-Acosta & De La Cruz-Agüero, 2005 (white-margin fin houndshark)
  Mustelus antarcticus Günther, 1870 (gummy shark)
  Mustelus asterias Cloquet, 1821 (starry smooth-hound)
  Mustelus californicus T. N. Gill, 1864 (grey smooth-hound)
  Mustelus canis (Mitchill, 1815)
  M. c. canis (Mitchill, 1815) (dusky smooth-hound)
  M. c. insularis Heemstra, 1997 (Caribbean smooth-hound)
  Mustelus dorsalis T. N. Gill, 1864 (sharp-tooth smooth-hound)
  Mustelus fasciatus (Garman, 1913) (Striped smooth-hound)
  Mustelus griseus Pietschmann, 1908 (spotless smooth-hound)
  Mustelus henlei (T. N. Gill, 1863) (brown smooth-hound)
  Mustelus higmani S. Springer & R. H. Lowe, 1963 (small-eye smooth-hound)
  Mustelus lenticulatus Phillipps, 1932 (spotted estuary smooth-hound)