Hi gas fraction (M_HI/M_⋆) as a function of stellar mass. Blue symbols correspond to the Virgo SFDs, with the different shapes indicating the atomic hydrogen content of the galaxies as given by the Hi deficiency parameter: Hi-normal (filled dots), Hi-deficient (rings), highly Hi-deficient (ringed dots). Red-purple triangles represent the DGS sample, grey squares show the spiral and dwarf galaxies of the KINGFISH sample, and purple diamonds correspond to the HeViCS BGC. Hi-deficient HeViCS BGC galaxies (Def_HI ≥ 0.5) are indicated by a diamond with a cross. Gas-scaling relations from Gavazzi et al. (2013b) are overlaid for normal (dash-dotted line), and highly deficient (dotted line) galaxies.