岩目大麻哈魚，為麻哈魚屬的一個種，為溫帶淡水魚，分佈亞洲日本淡水流域，棲息在底中層水域，生活習性不明。
參考文獻
- Froese, R. & Pauly, D. (eds.) (2015). Oncorhynchus iwame. FishBase. Version 2015-10.
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