Black Pearl Red Ear Slider
Here's the corrected version of your statement:
Black Pearl RES are the Chinese line of melanistic Red-Eared Sliders, as they were originally first produced in China. In 2016, a friend and I imported a few of them. They are very similar to Charcoal RES, and most of the time, you can't tell the difference between the two. However, Black Pearls sometimes have more skin and head patterns, usually featuring grey or white striping or markings on their arms and head.
Otherwise, they are typically dark, patternless black or grey turtles with solid black eyes. On very rare occasions, some may have dark red ears, though these usually fade to black over time. I've only hatched a handful with the red ears.