A Description of two new Calcispongiae, to which is added Confirmation of Prof. James Clark's Discovery of the True Form of the Sponge-cell (Animal), and an Account of the Polype-like Pore area of Cliona corallinoides contrasted with Prof. E. Häckel's View on the Relationship of the Sponges to the Corals. - Carter, H.J. (Annals and Magazine of Natural History, 1871)