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We report on the properties of 89 low mass star clusters located in thevicinity of luminous young clusters (blue globulars) in the disk of M31. 82 ofthe clusters are newly detected. We have determined their integrated magnitudesand colors, based on a series of Hubble Space Telescope Wide Field/PlanetaryCamera 2 exposures in blue and red (HST filters F450W and F814W). Theintegrated apparent magnitudes range from F450W = 17.5 to 22.5, and the colorsindicate a wide range of ages. Stellar color-magnitude diagrams for allclusters were obtained and those with bright enough stars were fit totheoretical isochrones to provide age estimates. The ages range from 12 Myr to>500 Myr. Reddenings, which average E(F450 - F814) = 0.59 with a dispersion of0.21 magnitudes, were derived from the main sequence fitting for thoseclusters. Comparison of these ages and integrated colors with single populationtheoretical models with solar abundances suggests a color offset of 0.085magnitudes at the ages tested. Estimated ages for the remaining clusters arebased on their measured colors. The age-frequency diagram shows a steep declineof number with age, with a large decrease in number per age interval betweenthe youngest and the oldest clusters detected.

An HST/WFPC Survey of Bright Young Clusters in M31. II. Photometry of Less Luminous Clusters in the Fields