沙氏下鱵（學名：Hyporhamphus sajori）為鱵科下鱵魚屬的魚類，又名日本下鱵魚、沙氏下鱵魚、水針魚，俗名大棒、針魚、水針、變魚、水鯰、單針魚，特色為其眶前管（preorbital canal）前支向前彎曲約為90°，下頜短於頭部長度。
沙氏下鱵分布於朝鮮釜山、日本長崎、九州以及渤海、黃海、東海及台灣、沿渤海灣經海河可達白洋淀、沿長江可達南京、武昌等海域，常見於淺海近岸。該物種的模式產地在長崎。[1][2]
參考文獻
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