Two black, yellow, and grey nudibranchs face left, on above the other. Polycera atra (top) is striped black and grey with bright yellow dots and Polycera hedgpethi (bottom) is black, grey, and yellow speckled with two wavy white stripes running down the length of its body. Both nudbranchs sit on Bugula brozoan prey. Photograph taken by Robin Agarwal in San Luis Obispo County, California