日本黑蝶 rì běn hēi dié

日本黑蝶最开始就是在日本海域发现的，是一种只生活在日本深海的鱼类，因为稀少所以昂贵，一条大约在1万到3万不等。它是温带地区的蝴蝶鱼种类,主要分布在日本的伊豆群岛和小笠源群岛海域。地区捕捞量和出口量的稀少，导致这种蝴蝶鱼在全世界范围内尤其名贵。它的颜色不敢恭维，除后三鳍末端呈现黄色外，全身都是黑灰色

百度翻译提供：

Japanese black butterfly was first discovered in Japanese waters. It is a kind of fish that only lives in the deep sea of Japan. Because it is rare, it is expensive, ranging from 10000 to 30000. It is a species of butterfly fish in temperate regions, mainly distributed in the waters of Izu Islands and Ogasawara Islands in Japan. Due to the scarcity of regional fishing and export, this butterfly fish is particularly valuable all over the world. Its color is not flattering. Except that the end of the rear three fins is yellow, its whole body is black gray