Diaphus sagamiensis is a species of lanternfish found in the north-western Pacific Ocean.Wang, J.T.-M. and C.-T. Chen, 2001. A review of lanternfishes (Families: Myctophidae and Neoscopelidae) and their distributions around Taiwan and the Tungsha islands with notes on seventeen new records. Zool. Stud. 40(2):103-126.
Etymology The fish is named after Sagami Bay, Japan.
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