﻿Canadian Stromatoporoid^. 137 



constellatum, Spencer, must be considered as synonyms of 

 S. typica, Eosen." 



It remains to be seen whether Spencer's C. constellatum 

 is the same as Hall's Stromatopora constellata (Pal. N. 

 York, vol. II., 1852, p. 324, pi. 72, figs. 2, a-h), which latter 

 species has not been examined microscopically. 



Stromatopora. constellata, Spencer. (Sp.) 



Cmnostroma constellata, Spencer. 1884. Bull. Mus. Univ. St. 



Missouri, vol. I., No. 1, p. 48, pi. 6, 



fig. 11. 

 '''Near the top of the Niagara series, at Carpenter's lime- 

 kiln, two miles and a half south of Hamilton, where it 

 is abundantly found associated with Ccenostroma botryoi- 

 deum." Spencer. See the remarks on the preceding species. 



Stromatopora Hudsonica, Dawson. (Sp.) 



Caunopora Hudsonica, Dawson. 1879. Quart. Journ. Geol. 

 Soc. Lond., vol. XXXV., p. 52, pi. 4, 

 fig. 9, and pi. 5, fig. 10. 

 Stromatopora Hudsonica, Nicholson. 1891. Mon. Brit. Stro- 



niatop., pt. 3, p. 172 : and Ann. 



and Mag. Nat. Hist., ser. 6, vol. 



VII., p. 312, pi. 8, figs. 1-3. 



The type of this species was collected by Dr. E. Bell in 



1878 on the Albany Eiver, Hudson's Bay, in rocks which 



are said to be of Upper Silurian age, though upon what 



evidence is not stated. Another specimen, which has 



since been identified with S. Hudsonica, was obtained by 



Dr. E. Bell in 1878 at Cape Churchill. 



Stromatopora Carteri, Nicholson. 



Stromatopora. Carteri, Nicholson. 1891. Mon. Brit. Stro- 

 matop., pt. 3, p. 174, pi. 1, figs. 6-7 : 

 and Ann. and Mag. Nat. Hist., ser. 6, 

 vol. VII., p. 314, pi. 9, figs. 5 and 6. 



