ossa hypobranchialia
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os hypobranchiale — (plural ossa hypobranchialia)) hypobranchial (one of a series of deep, paired endochondral bones on the lower part of the gill arch between the ceratobranchials and the basibranchials. May occur on arches 1, 2, 3, 4 and bear dentigerous plates.… … Dictionary of ichthyology
