INDEX TO FOSSILS OF NIAGARA GROUP. 401 



Lichas brovicops ? Hall, Trans. Albany Inst., Vol. iv, p. 222. 1802 334 & 377 



'L. docipiens, "W. and M., Mem. Bost. Soc. Nat. Hist., Vol. i, pa. 104. 



pi. 3, f. 11. 

 L. pug;nax, W. and M., Mem. Bost. Soc. Nat. Hist., Vol. i, pa. 103, 



pi. 3, f. 10. 



Sphairexochus mirus, = S. romingeri, Hall 334 



S. romingeri. Hall 375 



Leperditia fonticola, Hall 335 



XX, XXI AND XXII. 



rs has already been p 

 Society's Transactions : the others will be deferred to the next Report. 



The first of these papers has already been published in the Am. Phil. 



[Assem. No, mo.] 51 



