Author: Delage, Yves & E.Hérouard.
Title: Mésozoaires, Spongiaires.
Description: Paris, 1899. IX,244 pp. 274 figs & 15 col. lithogr.plts. Rebound in 2 cloth vols. (Traité de Zool. concrète II/1).

Keywords: Invertebrates Sponges Hydrobiology Evertebraten Sponzen Hydrobiologie