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Fig. 4. Membranous Labyrinth of the Brush-tailed Wallaby

Petrogale penicillata. x 4. (original printed magnification)

The lettering is the same for all the plates.
  • n. c. Cochlear nerve.
  • a. h. Ampulla of the Horizontal Canal.
  • a. s. Ampulla of the Superior Canal.
  • e. s. Endolymph space of Superior Canal.
  • p. s. Perilymph space of Superior Canal.
  • v. Vestibule.
  • a. p. Ampulla of the Posterior Canal.
  • o. Otolith.
  • p. Posterior Canal.
  • p. h. Perilymph space of the Horizontal Canal.
  • e. h. Endolymph space of the Horizontal Canal.
  • c. Cochlea.
  • x. Fenestra rotunda.
  • h. Horizontal Canal.
  • p.p. Perilymph space of Posterior Canal.
  • e. p. Endolymph space of Posterior Canal.
  • a. c. Aqueduct of the cochlea.

Membranous Labyrinth Links: Fig 1 Lion | Fig 2 Indian Gazelle | Fig 3 Three-toed Sloth | Fig 4 Brush-tailed Wallaby | Fig 5 Crested Screamer | Fig 6 Masai Ostrich | 1906 Paper | Inner Ear Development

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Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)


Gray, A. Observations on the Labyrinth of Certain Animals. (1906) Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character (1905-1934). 1906-10-12. 78 (525):284–296.

Cite this page: Hill, M.A. (2024, March 4) Embryology Gray1906 fig04.jpg. Retrieved from

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current11:07, 31 October 2014Thumbnail for version as of 11:07, 31 October 20141,500 × 983 (182 KB)Z8600021 (talk | contribs)
11:07, 31 October 2014Thumbnail for version as of 11:07, 31 October 20141,963 × 1,286 (330 KB)Z8600021 (talk | contribs)==Fig. 4. Membranous Labyrinth of the Brush-tailed Wallaby== Petrogale penicillata. x 4. (original printed magnification) {{Gray1906 figures}}