EXIM-ANATI(»NK OK PlA'II-K. 335 



AC;L(E()DICTYA, gen. nov. 



Page 177. 

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



AcLOiODICTYA MARSIPITS, Sp. noV. 



PjiKO 178. 

 (Seu Plates LV, LX, LXL) 



Figures 7, 8. The })asal parts of two specimens, showing the character of 

 the reticulum and the broad cui'vature at the biusal edge. 

 Keokuk group. ludiait Creek, India/rM. 



