Dhiho’s seahorse

This is an x-ray image of a Dhiho's seahorse along with a corresponding photograph of the specimen in identical pose. Just over one inch long, this elegant fish is readily identified as a seahorse by its characteristic head. The body ends in a tail that can curl around and hold on to algae or coral. This species is found only in the waters around Japan. This specimen is a scientifically invaluable holotype, or the single specimen used by science to describe an entire species.