any of an order (Coelacanthiformes) of lobefin fishes, now extinct except for the latimeria
Origin of coelacanthfrom Modern Latin Coelacanthus from Classical Greek koilos (see -coele) + akantha, thorn (see acantho-)
Any of various mostly extinct lobe-finned fishes of the group Coelacanthiformes or Actinistia, known only in fossil form until a living species, Latimeria chalumnae, was identified in 1938. A second Latimeria species was described in 1999.
Origin of coelacanthNew Latin Coelacanthus former genus name Greek koilos hollow ; see -coel . Greek akantha spine (in reference to the hollow spines of the fins)
Ancient Greek κοῖλος (koilos, “hollow”) + ἄκανθα (akantha, “spine”).