coelacanth

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coelacanth:

see lobefinlobefin,
common name for any of a group of lunged, fleshy-finned, bony fishes, also called crossopterygians, that were dominant in the Devonian period and may have given rise to amphibians.
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; fishfish,
limbless aquatic vertebrate animal with fins and internal gills. Traditionally the living fish have been divided into three class: the primitive jawless fishes, or Agnatha; the cartilaginous (sharklike) fishes, or Chondrichthyes; and the bony fishes, or Osteichthyes.
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coelacanth

[′sē·lə‚kanth]
(vertebrate zoology)
Any member of the Coelacanthiformes, an order of lobefin fishes represented by a single living genus, Latimeria.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

coelacanth

a primitive marine bony fish of the genus Latimeria (subclass Crossopterygii), having fleshy limblike pectoral fins and occurring off the coast of E Africa: thought to be extinct until a living specimen was discovered in 1938
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005