Subfamily Tychinae Dana 1851 (spider crab)
Malacostraca - Decapoda - Epialtidae
No fossil representatives
Parent taxon: Epialtidae according to C. E. Schweitzer et al. 2020
See also Schweitzer et al. 2010
Sister taxa: Epialtinae, Periacanthinae, Pisinae, Pliosomatinae
Subtaxa: Pitho
Ecology: epifaunal carnivore
Distribution: