 Note that the name "Popolocan" is also by linguists to refer to these languages, which include varieties of Mazatec.In Nicaragua, the Nahua-speaking Nicarao used the term "Popoluca" for the speakers of the Matagalpa language.Although "Popoluca" and "Popoloca" are derogatory and confusing terms, they are still being used even in academic literature or official publications of the Mexican government.