coelacanth

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Related to Latimeria chalumnae: Latimeria menadoensis
Coelacanthclick for a larger image
Fig. 111 Coelacanth . Latimeria chalumnae. Length: 1.5m.

coelacanth

a primitive bony fish with lobed fins (as distinct from ray fins). Almost all its relatives were freshwater fossil forms dating from the DEVONIAN PERIOD. Latimeria is a living marine form found round the Comoro Islands off Southeast Africa and collected for the first time in 1938. It is remarkable in that it has remained almost unchanged from its ancestors in the lower CARBONIFEROUS PERIOD, that existed more than 300 million years ago.
References in periodicals archive ?
Positive darwinian selection in the singularly large taste receptor gene family of an 'ancient'fish, latimeria chalumnae. BMC Genomics, 15: 1.
Sequence divergence is evident among the evolutionarily distant species like Sarcophilus harrisii (Tasmanian devil), Xenopus laevis (African clawed frog), Western clawed frog, Latimeria chalumnae (West Indian Ocean coelacanth), Ctenopharyn godonidella (Grass carp), zebra fish, Hymenolepis microstoma (Rodent tapeworm).
(2007) Purification and characterization of pepsinogens from the gastric mucosa of African coelacanth, Latimeria chalumnae, and properties of the major pepsin.