We present a new catalog of star cluster candidates in the nearby spiral galaxy M33 .
It is based on eight existing catalogs wherein we have cross-referenced identifications and endeavored to resolve inconsistencies between them .
Our catalog contains 451 candidates of which 255 are confirmed clusters based on HST and high resolution ground-based imaging .
The catalog contains precise cluster positions ( RA and Dec ) , magnitudes and colors in the UBVRIJHK _ { S } filters , metallicities , radial velocities , masses and ages , where available , and galactocentric distances for each cluster .
The color distribution of the M33 clusters appears to be similar to those in the Large Magellanic Cloud with major peaks at ( B - V ) _ { 0 } \sim 0.15 , and ( B - V ) _ { 0 } \sim 0.65 .
The intrinsic colors are correlated with cluster ages , which range from 10 ^ { 7.5 } to 10 ^ { 10.3 } years .
The age distribution of the star clusters supports the notion of rapid cluster disruption with a slope of \alpha =–1.09 \pm 0.07 in the dN _ { cluster } / d \tau \propto \tau ^ { \alpha } relation .
In addition , comparison to theoretical single stellar population models suggests the presence of an age-metallicity relation among these clusters with younger clusters being more metal-rich .
Analysis of the radial distribution of the clusters yields some evidence that younger clusters ( age \mathrel { < \kern - 10.0 pt \lower 3.87 pt \hbox { $ \sim$ } } 1 Gyr ) may be more concentrated toward the center of M33 than older ones .
A similar comparison with the radial profile of the M33 field stars shows the clusters to be more centrally concentrated at the greater than 99.9 % confidence level .
Possible reasons for this are presented and discussed ; however , the overwhelming conclusion seems to be that a more complete and thorough cluster search is needed covering at least 4 square degrees centered on M33 .