Diaphus schmidti is a species of lanternfish found in widespread areas of the tropical and the subtropical Pacific Ocean.Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text).

Description This species reaches a length of .

Etymology The fish is named in honor of Danish biologist Johannes Schmidt (1877–1933), who led the Dana expedition that collected the type specimen.

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