CCD SPECTROPHOTOMETRY OF CVS .2. 3300-9150 ANGSTROM ATLAS FOR 25 FAINT SYSTEMS

A 7 Angstrom resolution, 3300-9150 Angstrom spectrophotometric atlas i s presented for 25 objects in the Downes & Shara (1993) catalogue of C ataclysmic Variables (CV). The stars were selected among those Listed as lacking of published quiescence spectra. The spectra are present ge nerally pertain to photometric quiescence phases. UBVRI magnitudes, co ntinuum fluxes at selected wavelengths, integrated fluxes of emission Lines, and the status of CV membership are derived for the programme s tars. Of the 25 systems surveyed 15 have spectra confirming their clas sification as CVs, 4 show hot continua without emission lines, 2 resem ble A-type stars, 2 can be identified as WDs, one is a detached WD+dM system and one is probably a CV caught in outburst. Combining these re sults with the ones on 31 faint systems surveyed in Paper I gives the rate of validated CVs among the entries in the Downes and Shara catalo gue which lack spectroscopic confirmation as similar to 63%. The rate of misclassified objects is similar to 10%. The confirmation rate is p articularly low for candidates from the Palomar-Green survey.