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n. pl.1.(Zool.) An order of fishes, including the sturgeons; - so named because the skeleton is cartilaginous.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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Lateralisation of rotational swimming but not fast escape response in the juvenile sterlet sturgeon, Acipenser ruthenus (Chondrostei: Acipenseridae).
Gardiner, B.G., (1967): Further notes on Palaeoniscoid fishes with a classification of the Chondrostei. Bulletin of the British Museum (Natural History: Geology), 14(5): 145-206.