Only think how stuck up they would be above the lowly mollusks of the same waters, if they knew themselves as Acanthopterygii, and were aware that their great-grandfather was an Acanthopteryx before them, and so away back in the age of waters that once were over all!.    From Wordnik.com.  [The Atlantic Monthly, Volume 07, No. 40, February, 1861] Reference

Acanthopterygii.    From Wordnik.com.  [Ceylon; an Account of the Island Physical, Historical, and Topographical with Notices of Its Natural History, Antiquities and Productions, Volume 1 (of 2)] Reference

Acanthopterygii, 360.    From Wordnik.com.  [Sketches of the Natural History of Ceylon] Reference