We present the multi-wavelength identifications for 23 sources in the Canada-UK Deep Submillimeter Survey ( CUDSS ) 14 ^ { h } field .
The identifications have been selected on the basis of radio and near-infrared data and we argue that , to our observational limits , both are effective at selecting the correct counterparts of the SCUBA sources .
We discuss the properties of these identifications and find that they are very red in near-infrared color , with many classified as Extremely Red Objects , and show disturbed morphologies .
Using the entire CUDSS catalogue of 50 sources we use a combination of spectroscopic redshifts ( 4 objects ) , 1.4GHz-to-850 \mu m flux ratio redshift estimates ( 10 objects ) , and redshift lower-limits based on non-detections at 1.4GHz ( the rest of the sample ) to estimate a lower-limit on the median redshift of the population of z _ { med } > 1.4 .
Working from simple models and using the properties of the secure identifications , we discuss general and tentative constraints on the redshift distribution and the expected colors and magnitudes of the entire population .