狮王斗鱼 shī wáng dòu yú

狮王斗鱼是泰国斗鱼品种中一种尾巴很漂亮的鱼，称其为狮王是因其尾骨上针的数目还能分为两针，四针，Y针等，好的狮王斗鱼尾巴鳍膜退缩在33%以上，分叉分明，有的呈现“Y”字形。

百度翻译提供：

Lion King Betta is a kind of fish with beautiful tail among the Thai Betta varieties. It is called lion king because the number of needles on its tailbone can be divided into two, four and Y needles. The fin membrane of a good Lion King Betta's tail shrinks by more than 33%, with distinct forks, and some show a 银行卡Y银行卡 shape.