418 



Report of the State Geologist. 



PLATE LXI. 



ACLCEODICTYA, gen. nov. 



Page 379. 

 (See Plates LIV, LV, LX, LXVIII.) 



ACIAEODICTYA MARSIPUS, Sp. HOV. 

 Page 370. 

 (See Plates LV, LX, LXVIII.) 



Figures 1, 2. Opposite sides of the lower portion of a cup which is referred 



with doubt to this species. 

 Figure 3. A portion of the body of a cup which has retained impressions of 



the erect surface lamellae. 



Keokuk group. Crawfordsville, Indiana. 



PHRAGMODICTYA, Hall. 



Page 364. 



(See Plates LXIV, LXV, LXVI, LXVII, LXVIII.) 



PlIRAGMODICTYA (?) CREBRISTRIATA, Hall. 

 Page 368. 



Figure 4. A view of the original specimen which appears to be a fragment 

 of the apertural portion of a very finely reticulated sponge. 

 Keokuk group. Crawfordsville, Indiana. 



LEBEDICTYA, gen. nov. 



Page 361. 

 (See Plates LVIII and LIX.) 



Lebedictya crinita, sp. nov. 



Page 361. 

 (See Plates LVIII and LIX.) 



Figure 5. A portion of a small specimen showing the apertural fringe. 

 Keokuk group. Crawfordsville, Indiana. 



DICTYOSPONGIA, gen. nov. 



Page 812, part 1. 



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



DlCTYOSPONGIA CYLINDRICA, Whitfield (sp.). 

 Page 358. 

 (See Plate LV.) 



Figure 6. A fragment of a small example with pyritized spicules. 

 Keokuk group. Cravfordsville, Indiana. 



