﻿322 Canadian Record of Science. 



and slialy limestone. It is also a characteristic British 

 species. 



2. Carhonia hairdioides, J. & K. (Fig. 8.) Less 

 abundant than the preceding, at the Joggins and al^o 

 at Mabou, where it was collected along with the preceding 

 by Mr. Foord, but it is abundant in the Upper Coal 

 Formation of Smelt Brook, East Eiver, Pictou. It is also 

 a common Scottish species. 



Fig. 9, X 25. 



3. Candona elongata, J. & K. (Fig. 9.) Larger and more 

 elongated than the preceding forms, but much less abun- 

 dant. It attains the length of yVth of an inch. 



Prof. Jones has some interesting remarks on the very 

 wide distribution of all these species in the Northern 

 Hemisphere, in connection with the fact that they were 

 probably shallow- water, or even brackish -water species. 

 This indicates means of transit for such animals, by shallow 

 areas either now oceanic or now land. It concurs \vith 

 many other facts in showing that the comparative 

 rarity of great ocean depths and high mountain ranges 



