Subclass Actinopteri.—The Series Ganoidei.—Are the Ganoids a 1 Natural Group?—Systematic Position of Lepidosteus.—Gill on the Ganoids as a Natural Group. Classification of Ganoids.—Order Lysopteri.—The Palæoniscidæ.—The 13 Platysomidæ.—The Dorypteridæ.—The Dictyopygidæ.—Order Chondrostei.—Order Selachostomi: the Paddle-fishes.—Order Pycnodonti.—Order Lepidostei.—Family Lepisosteidæ.—Embryology of the Garpike.—Fossil Garpikes.—Order Halecomorphi.—Pachycormidæ.— The Bowfins: Amiidæ.—The Oligopleuridæ.…
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