426 



Strophomena Leda, 120. 



" nitens, 118. 



" Philomela, 122. 



" recta, 130. 



" subtenta, 132. 



" Thalia, 125. 

 Stromotopora compacta, 55, 212. 



" rugosa, 213. 

 Strombodes gracilis, 113. 

 Subulites Daphne, 223. 



" parvulus, 36. 



.Psyche, 188. 



Telephus Americanus, 291. 

 Trachyium cyathiforme, 211. 



" rugosum, 212. 

 Trematis Huronensis, 53. 



" Montrealensis, 5i. 



" Ottawaensis, 53. 

 Triarthrus Ficcheri, 291. 

 Tricbospongia sericea,-25'F. ' 

 Trimerella grandis, 166. 



" acuminata, 167. 

 Zaphrentis Canadensis, 105. 



3 



