The ideal photo would be a flat manta belly, with no fish or divers or bubbles obscuring its markings. That said, any photograph that gives us visual information about an animal's markings is worthwhile. We are happy to receive photos of parts of mantas, so long as enough of the markings are revealed to permit later identification. We identify mantas using the demarcation line or interface between light areas and dark areas, so sharp contrast is appreciated. For chevron mantas, an entire belly with bellymarkings, will do. A set of gills with marks below them. One wing alone is sufficient, if the demarcation line, between the white belly and gray band at the edge of its wind, is curvaceous. For black mantas, one white "arm" rising up along the outside of the gills. The edge of the "head" between the gills. We value the pelvic fins, in front of the tail, as they show the sex of the manta. Video is valuable for its continuity between frames of a manta turning or sliding by, revealing the markings in sequence if not all together.