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The coelacanth of frogs

机译:青蛙的腔棘鱼

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摘要

The discovery of a living coelacanth I in 1938 captured public attention I because it represented an ancient lineage of fishes thought to have been extinct for some 80 million years'. Now, a living amphibian with unusually deep evolutionary roots has been discovered in India. Writing on page 711 of this issue, Biju and Bossuyt describe this odd-looking species of frog, which was collected in the Western Ghats Mountains of southern India. The characteristics that seem strange to a non-herpetologist ― a bloated body, stubby limbs, tiny eyes and protruding snout (Fig. 1) ― are not uncommon in burrowing frogs. However, its internal anatomy and DNA sequence data show that this species represents a deep branch in the family tree of frogs. Its closest relatives live in the Seychelles, 3,000 kilometres south of India, near Madagascar. Appropriately, the authors place their new species in a new family.
机译:1938年发现了活的腔棘鱼I,引起了公众的关注,因为它代表了一种古老的鱼类谱系,据信这些鱼类已经灭绝了8000万年。现在,在印度发现了具有异常深厚的进化根的活两栖动物。 Biju和Bossuyt在本期杂志的第711页上写道,这种奇特的青蛙物种是从印度南部的西高止山脉收集的。对于非爬行动物学家来说似乎很奇怪的特征-肿的身体,四肢短粗,眼睛细小和突出的鼻子(图1)-在挖洞青蛙中并不罕见。但是,其内部解剖结构和DNA序列数据表明,该物种代表了青蛙家族树中的深层分支。它的最亲戚住在马达加斯加附近印度以南3,000公里的塞舌尔。适当地,作者将他们的新物种放入一个新的家族中。

著录项

  • 来源
    《Nature》 |2003年第6959期|p.669-670|共2页
  • 作者

    S. Blair Hedges;

  • 作者单位

    NASA Astrobiology Institute and Department of Biology, Pennsylvania State University, University Park, Pennsylvania 16802, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然科学总论;
  • 关键词

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