coelacanth
Meanings
noun
- Any of the class Actinistia of primitive lobe-finned fish, thought to have been extinct for 70 million years until a living specimen was discovered in 1938. Most species are large and plump and they all have bodies covered in tough elasmoid scales that act as armor.
- Either of the two extant species in this group; the West Indian Ocean coelacanth (Latimeria chalumnae) or the Indonesian coelacanth (Latimeria menadoensis).
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Etymology
From the New Latin genus name Coelacanthus, from Ancient Greek κοῖλος (koîlos, “hollow”) + ἄκανθα (ákantha, “spine”), referring to the hollow caudal fin rays of the first fossil specimen described and named by Louis Agassiz in 1839.
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