Yes it does have a buoyancy system.
The coelacanth (Latimeria spp.) is completely oil-filled (it has no air sinuses at all) and the swim bladder is filled with a fatty lipid. The oil is slightly positively buoyant and this counteracts the weight of the fish. These two factors enable the fish to rise and descend through a considerable depth range without suffering any adverse effects.
Gills
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no
yes, the coelacanth is older than the dinosaurs.
No, the coelacanth is a carnivorous fish. It feeds on other fish and cephalopods.
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You can catch a coelacanth when it is raining or snowing
The scientific name for the coelacanth is Latimeria chalumnae.
The living coelacanth, Latimeria spp., can reach a total length of 2 metres.
The Coelacanth lives in the Indian Ocean, ranging anywhere from South Africa to India, and Indonesia.
Ovovivipary
Ii is about 154.5 million dollars for this rare species known as the coelacanth