Bloth design sketch

In the distant hoary past of Mer, three races dominated the surface of the planet: the seafaring Kyllexians, the mountain-dwelling Taantahi, and the Paituperoa of the forests. After thousands of years, it's unlikely that many pure-blooded members of the original native races still survive (with the possible exception of the relict population known as Atani), but based on the ancient engravings and historical accounts in in the archives on the Island of the Pale Warriors, Bloth has got to be part Kyllexian.

(Most of the above paragraph is my own headcanon. :V)