Next time please reply to the proper comment! And if you wish to sort this out, please note the group instead and we discuss in privacy, thank you! :>
By personal note I know both these species and I can tell how the fact they both contain crystal gemstones in general body parts does not make them the same. The concept might be similar but this is not a closed trait. The lore and extra information is much different and I believe this is what determines what a species is and what is not ^^