Keywords: Origin of Vertebrates Fig 033.png Fig 33 ”Pineal Eye of AmmocĹ“tes with its Ganglion Habenulæ On the left side the eye is drawn as it appeared in the section On the right side I WHG have removed the pigment from the nerve end-cells and drawn the eye as in my opinion it would appear if it were functional All references in this work to AmmocĹ“tes or Petromyzon appear to refer to the species now called Lampetra planeri 1908 The Origin of Vertebrates https //archive org/details/originofvertebra1908gask Walter Holbrook Gaskell PD-old-auto-1923 1914 Origin of Vertebrates book Lampetra planeri Pineal gland |