Term Name: pharyngobranchial 2 bone
Synonyms: infrapharyngobranchial 2
Definition: Pharyngobranchial 2 (misidentified as pharyngobranchial 1 in Cubbage & Mabee, 1993 and Mayden 1989) is present and separate from pharyngobranchial 3. It (8.0 mm) ossifies after pharyngobranchial 3. In the adult, the cartilaginous anterior end of the ossified pharyngobranchial 2 articulates with the cartilaginous medial tip of epibranchial 1. It articulates anterolaterally and posterolaterally with the anterior and posterior cartilaginous tips of epibranchial2. In Cyprinidae pb3 overlaps pb2 (Siebert, 1987; Cavender & Coburn, 1992) but does not fuse to it.
Appears at: Juvenile:Days 30-44 (30d-45d, 10 mm, adult fins/pigment)
Evident until: Adult (90d-730d, breeding adult)
Ontology: Anatomy Ontology [ZFA:0001250]

Relationships
develops from: pharyngobranchial 2 cartilage
is part of: pharyngeal arch 4 skeleton
is a type of: pharyngobranchial bone

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