If you are from Nigeria, do not get discouraged for not being on that list!
Indeed, Nigeria has its own system named Nigeria Student Express (NSE).
It is even better than regular SDS, since it does not oblige the candidate to commit funds upfront before submitting the application, unlike SDS.
Under the NSE, the applicant must show that he has the relevant funds in a bank account . NSE relies on a local verifiable banking solution called MyBank.