300 DicTYOSpoNorn^. 



PLATE LI. 

 CLEODICTYA, HaU. 



Page 163. 

 (See Plates LXIX and LXX.) 



Cleodictya Clatpolei, sp. nov. 



Page 163. 



Figure 1. An incomplete example, showing the small size of the sponge, the 

 basal row of elongate nodes and the gradual, vase-like expansion 

 above. 

 Waverly group. Ah'on, Ohio. 



CALATHOSPONGIA, gen. nov. 



Page 155. 

 (See Plates XLVIII, XLIX, L, LII, LVI, LVII, LX, LXVIII.) 



Calatiiospongia caroeralis, sp. nov. 



Page 157. 

 (See Plates LII and LX.) 



Figures 2, 3. Opposite sides of a specimen, evidently entire, but somewhat 

 irregular at the aperture, and nearly complete at the base. The 

 specimen shows the strong reticulation and the prominence of the 

 primary bands, in which resjiect it is unlike other species referred to 

 the genus, though agreeing ^\ ith them in its form and broad base. 

 The apertural margin, as shown in fig. 1, is entire and regular but 

 the growth of the sponge seems to have been abruptly stopped on 

 this side, as, upon the opposite surface, it is continued for a consider- 

 able distance further upward. This is evidently not due to a distor- 

 tion of the skeleton for the horizontal bands may be traced 

 continuously about the surface without deviation from their plane. 



Figure 4. A larger, nearly complete specimen. This is a figure which was 

 used in the original illustration of Dictyophyton Nemherryi (Six- 

 teenth Annual Report of the N. Y. State Cabinet, pi. iv, fig. 3), but 

 the surface represented shows much less distinctly than the opposite 

 side of the specimen the coarse primary quadrules and spicular bands. 

 Waverly group. Michfield, Ohio. 



