有人叫黑叉尾鬥魚, junior synonym是Macropodus concolor, 分類歷史有一些複雜, 中文名亂七八糟一堆, 有人叫"藍珍珠天堂鳥", "黑天堂鳥", 或是"黑岐尾鬥魚", 網路上有大大說這隻是Macropodus erythropterus, 我覺得誤會大了, 其實台灣比較常進口的應該都是Macropodus spechti (=M. concolor) (叫黑叉尾鬥魚是合理的), 真正的M. erythropterus不是沒有進口過, 只是在市面上少見, 合理的中名是"越南黑叉尾鬥魚", M. erythropterus的背鰭, 臀鰭和尾鰭邊緣會有紅色邊, 但spechti不會出現, 兩者的體色也不同, 大多數的水族貼圖網頁上名為"藍珍珠天堂鳥"的也都是spechti (=concolor), 而不是他們所認為的erythropterus. 有興趣的人應該要讀讀以下的原始文獻:
Freyhof, Jörg & Herder, Fabian, 2002, "Review of the paradise fisches of the genus Macropodus in Vietnam, with description of two new species from Vietnam and southern China (Perciformes: Osphronemidae)", Ichthyol. Explor. Freshwaters, Vol 13, No. 2, pp 147-167
Freyhof, Jörg & Herder, Fabian, 2002, "Review of the paradise fisches of the genus Macropodus in Vietnam, with description of two new species from Vietnam and southern China (Perciformes: Osphronemidae)", Ichthyol. Explor. Freshwaters, Vol 13, No. 2, pp 147-167