The I'Iglii were peaceful, diminutive humanoids. One of the I'Iglii species was thought to have evolved on Ingar. They were slightly taller than the Near-Human I'Iglii, with an adult height of 1.0 to 1.6 meters (females being slightly taller on average.) They were covered in short fur, ranging from black to tan in color. Their faces had floppy ears, long muzzles, and small black eyes. They had three long fingers and a thumb on each hand.
The Near-Human I'Iglii differed from the Human norm primarily in their short stature (1.0 to 1.5 meters for adults of both sexes.) Near-Human I'Iglii were often said to resemble Human children, though males frequently (and proudly) grew full beards. Xenobiologists believed that the Near-Human I'Iglii arrived on Ingar from a nearby planet, and adopted the culture of the original Bimm species. No other animal species on Ingar was related to them genetically.
Both species called themselves simply "I'Iglii" and lived harmoniously with each other in their shared forest cities. They considered themselves to be a united people, and were considered as such by the rest of the galaxy. Intermarriage between the two I'Iglii species was not uncommon, though genetic incompatibilities required such couples to adopt if they wanted children.