Optical spectroscopy of galaxies in the direction of the Virgo cluster

Optical spectroscopy of 76 galaxies, 48 of which are projected in the direc tion of the Virgo cluster and 28 onto the Coma-A1367 supercluster, is repor ted. Adding these new measurements to those found in the literature, the re dshift completeness in the Virgo region becomes 92% at B-T less than or equ al to 16.0 and 68% at B-T less than or equal to 18.0. The one of CGCG galax ies in the direction of the Coma-A1367 supercluster becomes 98%. The Virgo cluster membership estimates obtained on morphological grounds by Binggeli et al. (1985) are confirmed in all cases. However, several "possible member s" classified as BCD (if in the cluster) are found instead to be giant emis sion-line galaxies in the background of the Virgo cluster.