Mauritania
The age of consent is 16. However, under section 306 of the Legal Code, any act that violates Islamic Morality is illegal, but a clear definition of morality does not exist in the country's laws, so it is very open to interpretation by local officials as to what is moral and what is not. Thus, many acts surrounding the age of consent could be considered illegal.
Read more about this topic: Ages Of Consent In Africa