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(), a.[Gr. gill + to cover: cf. F. branchiostge.] (Anat.) Pertaining to the membrane covering the gills of fishes. -- n.(Anat.) A branchiostegal ray. See Illustration of Branchial arches in Appendix. This term was formerly applied to a group of fishes having boneless branchi. But the arrangement was artificial, and has been rejected. スポンサード リンク
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