epibranchial bone

Term ID

ZFA:0000658

Synonyms

• epibranchial bones

Definition

Pharyngeal arch bone that is bilaterally paired and articulates laterally with ceratobranchial cartilage or bone. Epibranchials are dorsal parts of the gill arches. Epibranchials 1-4 ossify in the epibranchial cartilages in a posterior to anterior progression. Gill rakers are present on the anterior and posterior edges of epibranchials 2 and 4 and the posterior edge of epibranchial 1. A reduced gill raker is present on the anterior margin of epibranchial 1 in some specimens.

Appears at

Unknown

Evident until

Adult (90d-730d, breeding adult)

References

• TAO:0000658

Ontology

Anatomy Ontology