Spell Weavers and Reggalids?

I noticed, while reading through (I think it was the life shaping handbook) some similarities between the Reggelids (six fingered elf-like creatures which religiously practice defiling magic and live in Rajaat’s swamp) and a species known as the the Spell Weavers (an aberrant race of six armed spellcasters with six fingers one each hand, the ability to rotate their heads 2pi radians, and the ability to cast two spells at the same time). Are there any canon appearances of Spell Weavers in Dark Sun, and are they in any way related to the Reggelids?