VIII.— The development of the auditory apparatus in <i>Sphenodon punctatus</i> ; with an account of the visceral pouches, aortic arches, and other accessory structures

Abstract

Abstract An investigation of the development of the inner ear of Sphenodon was suggested to me by Prof. Dendy during the spring of 1913, and the present paper records the results of the consequent research begun at King’s College in the summer of the same year. At an early stage of the work it became evident that a study of the inner ear, isolated from the structures intimately associated with it, would be neither conclusive nor complete. The scope of the investigation was therefore extended to include the development of the pharynx, the auditory capsule, the middle ear, and the nerves and blood vessels of the auditory region.