Specifically, a halfmoon betta must have a caudal where both ends are exactly180 degrees apart or more, spreading towards the front.
具体来说,半月斗鱼一定要具备开展朝向前方,180°上的尾。
Specifically, a halfmoon betta must have a caudal where both ends are exactly180 degrees apart or more, spreading towards the front.
具体来说,半月斗鱼一定要具备开展朝向前方,180°上的尾。
Most fishes have unstriated rays along the anterior part of the dorsal and ventral edges (leading edges) of the caudal fin.
大多数鱼类的尾
,沿著背
与
的前部具有无
痕的
。
一些鱼中,例如鰕虎鱼其有
痕的与无
纹的软
数量比
鑑定上是有帮助的。
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