﻿Canadian Stromatoporoids. 135 



Lake Teniiscaming by Sir W. E. Logan in 1845, at 

 Thorold, Ontario, by E. Billings in 1857, and in the 

 Anticosti group at Junction Cliff and the west side 

 of Gamache or Ellis Bay, Anticosti, by T. C. Weston in 

 1865. It appears to be very abundant at Lake Temis- 

 caniing, where specimens were recently collected by Dr. E. 

 Bell in 1887, and by Mr. A. E. Barlow in 1893 and 1894. 



Clathrodictyon fastigiatum, Nicholson. 



Glathrodictyonfastigiatum, Nicholson. 1886. Mon.Brit.Stro- 



matop., pt. 1. p. 43, figs. 3, a-h : 

 and, 1887, Ann. and Mag. Nat. 

 Hist., ser. 5, vol. XIX., p. 8, pi. 2, 

 figs. 3 and 4 : also, 1888, Mon. 

 Brit. Stromatop., pt, 2, p. 152, 

 pi. 19, figs. 1-5. 

 In the Guelph formation at Glenelg Township, six miles 



from Durham, where a few specimens were collected by 



Mr. Townsend in 1884. 



Clathrodictyon ostiolatum, Nicholson. 



Stroriiatopoixt ostiolata, Wioholson. 1873. Ann. and Mag. Nat. 



Hist., ser. 4, vol. XIL, p. 90, pi. 5, 



figs. 1 and la : 1874, Kep. Pal. Prov. 



Ont., pi. 1, figs. 1 and la: 1875, Kep. 



Pal. Prov. Ont., p. 63 : and, 1878, 



Journ. Linn., Soc. Zool., vol. XIV., 



pi. 2, figs. 1 and 2. 

 Clathrodictyon {Stromatopora) ostiolata, Nicholson. 1886. 



Mon. Brit. Stromatop., pt. 1, p. 14. 



Clathrodictyon ostiolatum, ^lohol^ow. 1887. Ann. and Mag. 



Nat. Hist., ser. 5, vol. XIX., p. 11, 



pi. 3, figs. 1-3. 



The type of this species was collected at Guelph, in the 



Guelph formation, by Mr. John Wilkie, not later than the 



year 1873, and specimens have since been obtained at 



