﻿Canadian Stromatoporoids. 131 



Labechia Canadensis, Nicholson and Murie. (Sp.) 



Stromatocerium Canadense, Nicholson and Murie. 1878. 



Journ. Linn. Soc, Zool., vol. 



XIV., p. 223, pi. 3, figs. 9 



and 10. 



ZahechiaCanadensis,l^iGholson. 1886. Mon.Brifc. Stromatop., 



pt. 1, pi. 2, figs. 3-5 : and Ann. and 



Mag. Nat. Hist., ser. 5, vol. XVIIL, 



pi. 14, pi. 2, fig. 5. 



Nicholson, 1891. Mon. Brit. Stroma- 

 top.,pt. 3, p. 163, pi. 20, fig. 9. 

 In Canada, so far as the writer is aware, this species has 

 only been found in the Trenton limestone at Peterborough 

 and Lake Couchiching, Ontario. At present it is not 

 represented in the Museum of the Geological Survey at 

 Ottawa. 



Labechia Huronensis, Billings. (Sp.) 



Stenopora Huronensis, Billings. 1865. Geol. Surv. Canada, 



Pal. Foss., vol. I., p. 185. 

 Tetradiuni IIuronense,^oordi{^^Yt\TL\). 1883. Contr. Micro- 

 Pal aeon t. Silur. rocks of Canada, pi. 

 7, figs. 1 and la, but not figs. 1, h-e. 

 Labechia Ohioensis, Nicholson. 1886. Mon. Brit. Stroma- 

 top., pt. 1, p. 32, foot-note, pi. 2, 

 figs. 1 and 2 : and Ann. and Mag. Nat. 

 Hist., ser. 5, vol. XVIIL, p. 13, pi. 2, 

 figs. 1 and 2. 

 Labechia montifcra, Ulrich. 1886. Contr. Amer. Palseont., 

 vol. L, p. 33, pi. 2, figs. 9 and 9<x. 

 The types of Stenopora Huronensis are from the Hudson 

 Eiver formation at Cape Smyth, Lake Huron, where 

 several fine specimens were collected by Dr. K. Bell in 

 1859, and not by Mr. A. H. Foord as supposed by Professor 

 Nicholson. Mr. L. M. Lambe, who has recently studied 

 these specimens somewhat exhaustively, is convinced that 



