dorsal fin protractor

Term ID

ZFA:0005816

Synonyms

• protractor dorsalis

Definition

Anterior longitudinal muscles of the dorsal fin. The dorsal fin protractor originates from the base of the first soft ray of the dorsal fin, extends along the midline just underneath the skin, and inserts at the posterior portion of the skull. Contracting the dorsal protractor will raise the fin. (1)

Appears at

Unknown

Evident until

Adult (90d-730d, breeding adult)

References

Ontology

Anatomy Ontology