There have been separate Maori seats since 1867 in New Zealand. People who identify themselves as being of Maori descent are eligible to enrol either on the general roll or on the Maori roll. Depending upon the exercise of that choice, when it comes to defining the boundaries, we have a Maori electoral population and a general electoral population. New Zealand is divided into 64 general electorates and seven Maori electorates. The number of Maori electorates will increase depending upon the choices exercised by people of Maori descent as to whether they want to go on the general roll or the Maori roll. All electorates represent the same number of people, so there are seven Maori electorates because, if you divide the Maori electoral population by the electoral quota, you get seven.
Does that answer your question?