So this is something I've been working over stream. It's my own personal species but showing the different variations of them.
You have Blue and green, which is the common one. The one that will usually be drawn and followed.
Purple and green, which is a mutation that is so rare, no one knows how to tell what signs will cause one
Red and purple, which only exist in one locations. A lot of these are pirates that either traverse the seas or space. But they also tend to have refugees that live with the blue and green ones.

There are also different types when it comes to roles. The blue/green shows a hunter body, the purple/green shows a motherly body and the red/purple shows what a male can look like. These aren't the only body variations but the ones explored this time around.

As for the sub-races to the species, this is so far all of them that have been explored. I'll be giving lore bits with future pieces, so stayed tuned C: