Headlight fish

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Headlight fish (Diaphus effulgens) is a small lanternfish found worldwide. It grows up to about 15 cm and has a large glowing patch on the front of its head, which is why it’s called the headlight fish. It lives in deep ocean waters, staying at 500–700 m during the day and moving up to 40–175 m at night. It occurs in the Atlantic, Pacific, and Indian Oceans. In the east Atlantic it ranges from the Antarctic Convergence to the English Channel; in the west from the U.S. East Coast to Brazil. In the Indian Ocean it’s found roughly from 70°E to 38°S, and in the Pacific from near the equator to about 29°N. Spawning is thought to occur in deep water. Conservation status: Least Concern. The species was first described in 1896 by Goode & Bean; the name Diaphus means “through bellows” and effulgens means glittering.