(a) FP points of the field galaxies presented in this paper (errors include a 5% systematic effect in the velocity dispersions), the FP points of cluster galaxies at ﹩z=1.27﹩ (van Dokkum & Stanford 2003), and the FP of the Coma Cluster (Jørgensen et al. 1996). (b) Offsets in ﹩M/ L_{B}﹩ from the Coma Cluster FP (square; derived from Jørgensen et al. 1996). Besides the ﹩z=1.27﹩ cluster, this figure also contains the data from van Dokkum et al. (1998) on the MS 1054 cluster at ﹩z=0.83﹩. The full, dashed and dotted curves are the model predictions for a single burst of star formation with a Salpeter (1955) initial mass function for redshifts 3, 2, and 1.5, respectively. Filled symbols indicate galaxies with masses ﹩M> 3\times 10^{11}\,M_{\odot }﹩; other symbols indicate galaxies less massive than that. Crosses and squares distinguish between galaxies at ﹩z< 0.8﹩ and ﹩z> 0.8﹩, respectively. All galaxies occupying the region below the ﹩z=1.5﹩ model curve are "E+A" galaxies, except 19990, and have masses less than ﹩3\times 10^{11}\,M_{\odot }﹩. The more massive galaxies have significantly older stellar populations.