Skeletal and cartilaginous elements of the gill arches; the last five of the set of seven pharyngeal arches; the numbering system can be confusing; generally branchial arch #1 is the first gill arch, or the third pharyngeal arch, but some authors do not follow this convention. [ http://zfin.org/ZDB-PUB-961014-576 ]

Synonyms: gill arches 1-5 skeleton branchial arch skeleton