Looking at this thread (and the accompanying one on another forum), it seems these are teh same or similar to shrimp that originally appeared in my Cherry population, and that have subsequently been breeding true in several tanks. I started with 25 pure red cherry shrimp (20 female, 5 male). These were in my heavily planted dwarf gourami breeding tank.
There are occasional information from larger cherry breeders that htey will occasionally get a less colorful (uncolored) shrimp that pops up in the population, and that you should cull these out to maintain strong reds.
For whatever reason, and I believe the reason is gouramis eating more red shrimp than black/clear, these non reds started to appear in my cherry tank. Over about 6 months, the population has drifted to about 1/2 reds and about 1/2 other colors. Except for color, the markings and look of both shrimp are identical, and they are identical to all photos of cherries that I have compared them to.
General knowledge has it that Cherrys are a color cultivar of a wild type of shrimp. Since this other shrimp was bred to fix the color at red, IMO, these are just shrimp where the color has become unfixed as they are in the wild strain. So other thatn color, there is no difference betweenthem and normal cherries. In fact they are normal cherry shrimp, just not red cherry shrimp.
Here are few shots of the ones that I have: all of these are from an originally red only population:
