The Legs of Lolth
The Sundis tribe is best known for ruling over the city Sund. The various troupes bear markings of different sea snakes and other aquatic serpents, which they keep as pets in their watery domain. They control a clan of Skum slaves, which they use to maintain the submarine portions of their city and for other menial labor.
Sundis Yuan-ti are the merchants of the empire of snakes. They alone have frequent interaction with the other races of Taragin, and consequently control the majority of trade between jungle-dwellers and the outside world. Despite their relative publicity, the Sundis are only slightly less mysterious than the clans found deeper in the jungle. Knowledge is one of the most valued commodities in Sund, and none comes at a higher price than information about the snake-people. They are led by the Abomination telepath Desiam-un, but rumors abound that he is merely the public face for one of the rare and powerful Anathemas.