Gas and stellar masses vs. dust mass. In the upper row, the atomic gas mass within R25 (left panel), the total atomic gas mass (central panel), and the stellar mass (right panel) are plotted against the dust mass. In the bottom row, the molecular gas mass (left panel), the total gas mass (atomic plus molecular) measured within the optical radius (central panel), and the total gas mass measured over the entire galactic disk (right panel) are plotted against the dust mass. Data are color coded according to the morphological type (HT). The best-fit parameters for each scaling relation are reported in the upper left corner, while the best-fit line is represented with the solid black line. The 68% confidence interval of the best-fit parameters is represented as a gray-shaded region. The intrinsic dispersion (δ) is reported in the bottom right corner, followed by the correlation coefficients (namely, P and K).