"Arte y Ritual/Tribal Art from Africa" opens with masks from sub-Saharan Africa of different types, styles, sizes and materials. Carved-wood vertical masks are displayed along with helmet masks and crest masks. Ends Sept. 12. Noon-6 p.m. Tuesday-Saturday. Cremata Gallery, 1646 SW Eighth St., Miami. Details: (305) 644-3315 or firstname.lastname@example.org or www.crematagallery.com.