Clytoceyx rex Sharpe, 1880

Large, heavy kingfisher with relatively short but massive arched bill, dark brown head, dark upper-parts, orange under-parts. Male nominate race orange above bill, orange stripe behind eye, orange collar, mantle, back and wings dark brown to black, wing-coverts tipped blue, rump and upper-tail coverts shiny pale azure, tail mostly dark blue-brown, white chin and throat, upper mandible dark brown, lower horn, iris dark brown, legs and feet dull yellow-brown. Juvenile like dull female, upper wing coverts with rufous margins, neck and breast feathers with dusky brown margins. Race imperator larger.