In his research, Oshima noted the presence of red stripes on the fish's sides, and some people today still mistake the Taiwan trout for a relative of the Japanese salmon.
不少人稱台灣鱒為「櫻花鉤吻鮭」。因為大島正滿的報告中曾經提到，台灣鱒因體側有九到十個紅色斑紋，被誤認與如今仍有迴游習性的日本櫻花鉤吻鮭同種。