polypteroidとは 意味・読み方・使い方

名詞

polypteroid (複数形 polypteroids)

1. Any fish of the family Polypteridae^ws.
   • 2018, Henry B. Bigelow, Soft-rayed Bony Fishes: Orders Acipenseroidei, Lepisostei, and Isospondyli:

     But this seems an unnatural arrangement; although the polypteroids and acipenserids are similar in that the number of fin rays is greater than the number of their basal skeletal supports and because there is an unmistakable spiral valve in the intestine […]