Exi'I.ANATIONH OK PlATI<«. 



275 



DICTYOSPONGIA, gen. nov. 



Page 72. 

 (See Plates XIV, XV, XVI, XXVII, XXXIII, XXXVI, XLI, XLII, XLIV, XLVI, LV, LVI, LXI.) 



DlCTYOSPONOIA (?) UACTEKIA, Hp. IIOV. 

 Page 77. 



Figures 7, 8. Two views of a supposed sponge with smooth surface, Ix^aring 

 very faint horizontal lines which are exaggerated in tlie drawings in 

 order to make theni visible. The fossil does not clearly show a 

 structure which conclusively demonstrates it spongeous nature. 

 Chemung group. Steuben county (?'), New York. 



