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File:Origin of Vertebrates Fig 034.png

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English: Fig. 34.—Horizontal Section through Brain of Ammocœtes, to show the Left, or Ventral Pineal Eye.


pn.2, left or ventral pineal eye; pn.1, last remnant of right, or dorsal pineal eye; g.h.r., right ganglion habenulæ; g.h.l.1, g.h.l.3, parts of left ganglion habenulæ; pi., fold of pia mater which separates the left ganglion habenulæ from the left pineal eye; f., strands of nerve-fibres connecting the left eye with its ganglion, g.h.l.3; V3, third ventricle; V.aq., ventricle of aquæduct.


(All references in this work to Ammocœtes or Petromyzon appear to refer to the species now called Lampetra planeri.)
Date
Source The Origin of Vertebrates. https://archive.org/details/originofvertebra1908gask
Author Walter Holbrook Gaskell.


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current22:21, 9 November 2013Thumbnail for version as of 22:21, 9 November 20131,127 × 1,682 (191 KB)Keith Edkins (talk | contribs)== {{int:filedesc}} == {{Information |Description={{En|Fig. 34.—Horizontal Section through Brain of Ammocœtes, to show the Left, or Ventral Pineal Eye. ''pn.<sub>2</sub>'', left or ventral pineal eye; ''pn.<sub>1</sub>'', last remnant of right, or...

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