﻿134 Canadian Record of Science. 



at Gamache Bay, Anticosti, which is imperfect at both 

 ends, is ten feet five inches in length, as stated by Mn 

 Billings, and a similarly imperfect specimen collected by 

 Messrs. Verrill, Shaler and Hyatt, is said to be thirteen 

 feet and a half in length. Professor Hyatt is of the 

 opinion that the length of an entire and adult specimen 

 of this species was " certainly not less than twenty feet." 



(^Silurian species.) 

 ACTINOSTROMA MATUTINUM, Nicholson. 



Actinostroma mahUimcrii, Nicholson. 1891. Ann. and Mag. 

 Nat. Hist., ser. 6, vol. VII., p. 

 322, pi. 9, figs. 1 and 2. 

 L'Anse au Gascon, five miles and a half east of Port 

 Daniel, in the Bale des Chaleurs, Dr. E. Bell, 1862 : one 

 specimen, from Division 1 of the Chaleur group, which is 

 supposed to be " about the horizon of the Niagara lime- 

 stone." The Stromatopora concentrica of the list of Port 

 Daniel fossils on page 444 of the Geology of Canada 

 is almost certainly this species. 



Clathrodictyon vesiculosum, Nicholson and Murie. 



Clathrodictyon vesicidosum, Nicholson and Murie. 1878. 



Journ. Linn. Soc, ZooL, vol. 



XIY., p. 220, pi. 2, figs. 11-13. 

 " " Nicholson and R. Etheridge, 



jun., 1880. Mon. Silur. Foss. 



Girvan, p. 238, pi. 19, fig. 2. 



Nicholson, 1887. Ann. and Mag. 



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



1, pi. 1, figs. 1-3 : 1889, Mon. 



Brit. Stromatop., pt. 2, p. 147, 



pi. 17, figs. 10-13, and pi. 18, 



fig. 12. 

 Specimens which have been recently identified with 

 this species were collected from the Niagara limestone at 



