Definition for BRAN-CHI-OS'TE-GOUS

BRAN-CHI-OS'TE-GOUS, a. [Gr. βραγχια, gills, and ςεγος, a covering.]

Having gill-covers, or covered gills, as a branchiostegous fish; covering the gills, as the branchiostegous membrane. The branchiostegi are an order of fish in the Linnæan system, the rays of whose fins are bony, but whose gill-covers are destitute of bony rays.

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