292 DictyosponoidjE. 



PLATE XLVII. 



Species from tlie Psammites dii Oondroz, submitted hij Professor Charles 

 Barkois, of Lille, Prance. 



EHABDOSISPONGIA, gen. nov. 



Page 116. 

 (See Plate XVI.) 



RlIABDOSISPONGIA CoNDROZIANA, Sp. nOV. 

 Pago 149. 



Figures 1, 2. Opposite sides of the original specimen showing its strong, 

 unequal annulations, producing a highly irregular form, and also the 

 sharply developed prism-faces. 

 Psammites du Condroz. Jeamoiit, Prance. 



