I've seen maybe two dozen of these critters in person and twice that many on tracking. All of them except two were named "a kejek leopardess". Two was shown as "a Kejek leopardess", like the picture posted here. I could not discern a difference. I killed a Kejek leopardess; no faction hit. She wasn't any more difficult to kill than the kejek leopardesses. Strange ... Has anyone figured out the difference?
They sometimes drop leopard skins as well as the usual hq/mq/lq cat pelts.
Their minimum level is at least 15, since they often con green to my level 20 character.