December 30th; Remarks on Certain Extinct Species of Fishes; Notices of Remains of Extinct Turtles of New Jersey, Collected by Prof. Cook, of the State Geological Survey, under the Direction of Dr. W. Kitchell; Synopsis of a New Classification of the Vegetable Kingdom; Note on the Collection of Reptiles from the Neighborhood of San Antonio, Texas, Recently Presented to the Academy of Natural Sciences by Dr. A. Heermann; Description of a New Genus of Colubriform Serpents from California; Notices of Extinct Vertebrata Discovered by Dr. F. V. Hayden, during the Expedition to the Sioux Country under the Command of Lieut