Stenocionops Desmarest 1823 (spider crab)
Malacostraca - Decapoda - Majidae
Parent taxon: Mithracinae according to C. E. Schweitzer et al. 2010
Sister taxa: Micippa, Mithraculus, Mithrax, Nemausa, Teleophrys
Subtaxa: Stenocionops dyeri, Stenocionops primus, Stenocionops suwanneeana
Ecology: epifaunal carnivore