The Bhavanapati devīs — the mansion-dwelling gods of the lower world. Scripture seats them but does not count them.
Enters by the south gate and sits in the quarter clockwise from it, one of three companies in that quarter.
Not a gap in the record. Asaṅkhyāta is a located category on the ladder of number, between the numerable and the infinite, with nine graded kinds of its own. Saying the gods are innumerable is saying where they sit on that ladder.