Decorator Crab
unidentified species

1/60s at f22, Kodachrome 25, ASA 25, Nikonos II w 35mm lens and 1:2 extension tube, Oceanic flash with aluminum flash reflector

This small decorator crab has used bits and pieces of a red sponge to disguise itself. Often the genus and species cannot be determined without collecting and examining in the laboratory, the camouflage is so effective.
Salt River Canyon, St. Croix, U.S. Virgin Islands