Helmet Mask , mid-late 1800s. Combining animal and human traits, this example of a genre of mask called suruku, meaning "hyena," most likely belonged to the Kor?, one of six power associations that the Malinke would have adopted from their Bamana neighbors. The Kor? is concerned with the circumcision and initiation of male youths into adulthood. The mask probably served as one of the symbols of the different Kor? classes.