求翻译：鱼类属於脊索动物门中的脊椎动物亚门。根据Nelson（1994年）统计，全球现生种鱼类共有24618种，占已命名脊椎动物一半以上，且新种鱼类不断被发现，平均每年已约150种计，十多年应已增加超过1500种，目前全球已命名的鱼种应在26000种以上。是什么意思？

Fish belonging to the vertebrate subphylum of the chordates. Nelson (1994) statistics, the world's modern 24,618 kinds of fish total, accounting for more than half of a named vertebrate, and a new species of fish continue to be discovered, an annual average of about 150 dollars, more than a decade h

Fish belong to the door of the animals in the invertebrate in the door. In accordance with Nelson (1994) statistics, Global is now a total 24,618 varieties of fish, invertebrate species has been named in more than one-half, and a new species of fish have been found, on average each year about 150 of

The fish belongs to in the chordate gate vertebrate subdivision.(In 1994) counted according to Nelson, global this present life planted the fish to altogether have 24618 kinds, occupies has named the vertebrate one above the half, also the new fish was discovered unceasingly, the average approximate

Fish belong to Chordata Subphylum Vertebrata. According to Nelson (1994), global health, species of fish total 24,618, accounted for more than half named vertebrate, and new species of fish are found, each year an average of about 150 meters, more than 10 years should have more than 1500 species, sp

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