Some Species have variants of themselves which aren't close enough to be considered truly one of their own, but are instead some strange cousin species. Examples in real life include an African Leopard being a subspecies of Leopards native to Africa. These all present variants of preexisting species. In their listing, they will describe how they are different from their other brethren.
Haskorian (Dwarf)
Differences: Haskorians are shorter, burlier, and hairier Dwarves who preferred to seclude themselves underground and away from interactions with others. This made them more hostile to 'outsiders', and prone to fly off the handle at the drop of a hat.
Feral (Goblin)
Differences: Ferals are the more monstrous brothers to the already looked down upon Goblin species, having ragged appearances like a ghoul. Ferals are insane cannibals who wrap themselves in sharp chains and broken bits of glass to better attune themselves to the demons who made them the way they are.
Gersekir (Kendari)
Differences: Gersekir are exiles of Corta Diez from around the birth of Corta Diez, discontent with their ruler's stringent demands. Most Gersekir are pursued by wandering Kendari as a means to sacrifice these exiles to Banadar. Gersekir are characterized by their duller maroon eyes, and softer complexions.
Gaunt (Abomination)
Differences: Skeletal and lithe, Gaunts are Abominations created through infusing a woman's womb with the bone of a skeleton already risen through necromancy. The horrific creation is not quite humanoid and nor is it a skeleton, lacking and shedding skin but never losing its muscle or hair.