This is an x-ray image of a lookdown along with a corresponding photograph of the specimen in identical pose. Because of its sloped head and the enlarged crest on its skull, the lookdown appears to “look down” as it swims. These fish often swim in small schools.


  • Title: Lookdown
  • Location: West shore of the Indian River, Sewalls Point, cove opposite markers 313 amd 315., Martin County, Florida, United States, Atlantic
  • Physical Dimensions: 17 cm (6.7 in)
  • Type: Radiograph
  • Rights: This image was obtained from the Smithsonian Institution. The image or its contents may be protected by international copyright laws. http://www.si.edu/termsofuse
  • External Link: View this object record in the Smithsonian Institution Collections Search Center
  • USNM Catalog Number(s): 184259
  • Scientific Name: <i>Selene vomer</i> (Linnaeus, 1758)
  • Photo Credit: Sandra J. Raredon, Smithsonian Institution National Museum of Natural History
  • Field: Vetebrate Zoology
  • Date Collected: 1958-03-27

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