Mass Effect & Mass Effect 2
The salarian government is called the Salarian Union. It is a labyrinthine web of matrilineal bloodlines, with political alliances formed through interbreeding.
In many ways, the salarian political network functions like the noble families of Earth's Medieval Europe. Structurally the government consists of fiefdoms, baronies, duchies, planets, and marches (colonization clusters). These are human nicknames; the original salarian is unpronounceable. Each area is ruled by a single Dalatrass (matriarchal head-of-household) and represents an increasing amount of territory and prestige within the salarian political web.
Approaching 100 members, the first circle of a salarian's clan comprises parents, siblings, uncles, aunts, and cousins. The next circle includes second cousins, etc., and escalates to well over 1000 members. The fourth or fifth circle of a clan numbers into the millions. Salarian loyalty is greatest to their first circle and diminishes from there. Their photographic memories allow salarians to recognize all their myriad relatives.