The angular momentum parameter λ within half the effective radius vs. the environmental proxy (the projected cluster-centric distance to M87). To convert the projected distance to megaparsecs, we assumed a constant distance to Virgo of 16.5 Mpc, i.e., the position of the galaxy along the line of sight is not considered. The angular momentum parameter of dEs appears to decrease for the galaxies that have experienced stronger and longer-lasting interactions with the cluster environment, which confirms previous trends of angular momentum-environment relations in the Virgo cluster (E. Toloba et al. 2015) and Fornax cluster (N. Scott et al. 2020). Shown here are only the dEs of E. Toloba et al. (2015) and B. Bidaran et al. (2020), since these also inhabit the Virgo cluster. Dashed line: the virial radius of the Virgo cluster (L. Ferrarese et al. 2012).