黑龙鱼的外观特征
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发布于 2023-01-25
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黑龙鱼的外观特征黑龙鱼黑龙鱼属于淡水鱼。事实上,龙鱼存在于350万年前的太古宙石炭纪。后来,由于地壳的运动,龙鱼逐渐分布在世界各地。黑龙鱼属于骨舌鱼亚目骨舌鱼科,是一种原产于南美洲热带的淡水鱼。其学名为Osteoglosumbicirrosium。它的长度不超过60厘米(2英尺),是一种优良的鱼类。它的肉很好吃。大规模;背鳍和臀鳍呈线形,几乎与尾鳍相连;嘴角高于眼睛,两条长触手向前延伸。雌鱼将卵含在嘴里,直到幼鱼孵化The appearance characteristics of black arowana Black arowana Black arowana belongs to freshwater fish. In fact, the arowana existed in the Archaean Carboniferous three and a half million years ago. Later, due to the movement of the earth's crust, the arowana was gradually distributed around the world Black arowana belongs to Osteoglossiformes, Osteoglossidae, which is a freshwater fish native to tropical South America. Its scientific name is Osteoglossumbicirrosium. It is not more than 60 cm (2 feet) long and is an excellent fishing species. Its meat is delicious. Large scale; The dorsal fin and gluteal fin are linear and almost connected with the tail fin; The corners of the mouth are raised above the eyes, and the two long tentacles extend forward. The female holds the eggs in her mouth until the young fish hatch