Machephilus dumerili – synonym of Centrophorus squamosus
Mapolamia spallanzanii – synonym of Carcharhinus melanopterus
Micristodus punctatus – synonym of Rhiniodon typus
Molochophrys galeatus – synonym of Heterodontus galeatus
Mustellus levis – synonym of Mustelus mustelus
Mustellus stellatus – synonym of Mustelus asterias
Mustelus abbotti – synonym of Mustelus mento
Mustelus edulis – synonym of Mustelus mento
Mustelus equestris – synonym of Mustelus asterias
Mustelus equestris – synonym of Mustelus mustelus
Mustelus felis – synonym of Triakis semifasciata
Mustelus kanekonis – synonym of Mustelus griseus
Mustelus laevis – synonym of Mustelus mustelus
Mustelus manazo – synonym of Mustelus mosis
Mustelus mediterraneus – synonym of Mustelus punctulatus
Mustelus natalensis – synonym of Triakis megalopterus
Mustelus nigromaculatus – synonym of Triakis maculata
Mustelus nigropunctatus – synonym of Triakis megalopterus
Mustelus osborni – synonym of Leptocharias smithii
Mustelus plebeius – synonym of Mustelus asterias
Mustelus striatus – synonym of Mustelus fasciatus
Mystidens innominatus – synonym of Negaprion acutidens