Aptychotrema is a genus of guitarfish, belonging to the family Rhinobatidae. They are found around Australia.
There are three living species, and one extinct species only known from fossil remains of Cenomanian age.
^ Froese, Rainer and Pauly, Daniel, eds. (2018). Species of Aptychotrema in FishBase. March 2018 version.
^ Bernárdez, E. (2002). Los dientes de seláceos del Cretácico de la depresión central asturiana. Univ. d'Oviedo: 1–476.