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Figure 6: Compilation of BHMFs predicted by several recent models for SMBH formation and growth. Shown are the BHMFs predicted by Hopkins et al. [145] (solid black line), Shen [146] (dotted blue line), Fanidakis et al. [147] (dashed red line), Di Matteo et al. [31] (dot-dashed green line), and Volonteri and Begelman [152] (dashed-dotted-dotted-dotted magenta line). In general the number densities predicted by the models agree to within a factor of a few, although they diverge at . Some of these authors did not report BHMFs at each redshift shown, so we only show those available at each redshift.