Note 53 — SECTION III. THE NERVOUS SYSTEM.
George Haslam translation
Compare Ehlers, Ueber die Zirbel der Haifische, Zeit. f. wiss. Zool. 1878, Vol. XXX; and Balfour, Development of the Elasmobranch Fishes, chap. ix.
George Haslam translation
Compare Ehlers, Ueber die Zirbel der Haifische, Zeit. f. wiss. Zool. 1878, Vol. XXX; and Balfour, Development of the Elasmobranch Fishes, chap. ix.