SANDRA J. RAREDON, NATIONAL MUSEUM OF NATURAL HISTORY, SMITHSONIAN INSTITUTION / SCIENCE PHOTO LIBRARY SANDRA J. RAREDON, NATIONAL MUSEUM OF NATURAL HISTORY, SMITHSONIAN INSTITUTION / SCIENCE PHOTO LIBRARY
Marine hatchetfish (Argyropelecus lychnus). X-ray of a section through a tropical marine hatchetfish, showing its large jaws (left). Marine hatchetfish live in the dark depths of the ocean. This specimen was collected at a depth of around 850 metres in the Pacific Ocean. As with many other deep-sea fish, their eyes (upper left) are large and their bellies have numerous small cream-colored spots (light organs) that are bioluminescent. Each species emits its own unique pattern of light. This specimen measures 7.5 centimetres in length.
Model release not required. Property release not required.