Effective radii versus stellar mass. Red filled triangles are our candidate TDGs. Magenta crosses are ALFALFA-selected candidate TDGs from Gray et al. (2023). Magenta open squares are candidate old TDGs from Duc & Mirabel (1994); Blue open circles are young TDGs in tidal features, as tabulated by Duc & Mirabel (1994). Blue filled diamond is the TDG AGC 208457, from Lee-Waddell et al. (2016). Cyan asterisk is the candidate TDG from Román et al. (2021). Small black dots are dwarf galaxies in the Fornax cluster, from Eigenthaler et al. (2018). Small green open hexagons are Local Group dSph, dE, dSph/dIrr, from McConnachie (2012). Red x marks are Local Group dwarf Irregular galaxies, from McConnachie (2012). The two largest Local Group galaxies are labeled in green. Best effective radii-stellar mass fits from Lange et al. (2016) are shown as green dashed line (Sd-Irr galaxies), brown dashed line (Sab-Scd galaxies), and olive dot-dash line (S0-Sa galaxies).