Here are two Canon species that have not made an appearance yet that I am aware of. Kerelians where mentioned in the TNG Episode: “Lessons”, Kriosians appeared in both ST: ENT: “Precious Cargo” and ST: TNG: Perfect Mate. Enjoy!

A Fan Site for the Star Trek Adventures RPG by Modiphius
Here are two Canon species that have not made an appearance yet that I am aware of. Kerelians where mentioned in the TNG Episode: “Lessons”, Kriosians appeared in both ST: ENT: “Precious Cargo” and ST: TNG: Perfect Mate. Enjoy!
Here is a relatively short-lived NPC species for GM’s to use in their games. Enjoy!
Jim and Michael expound upon Chapters 4 and 5 of the Shackleton Expanse Campaign Guide. Explore new Player Options and uncover the mysteries of the
“Um, Captain! That bush just moved. Ensign! Bushes don’t move. Sir, lookout!!! Ugh, another smart red shirt down. These sneaky bushes should give GM’s something to have fun with. Enjoy!
This Canon species is mentioned a couple of times in Star Trek: Deep Space Nine where Jadzia Dax mentions that she has a friend that is a Gallamite. Here is my version. Enjoy!
Jim and Michael continue their exploration of the Shackleton Expanse Guide with an overview of chapter 3, Factions Within the Expanse! Learn how new species