104 Canadian Record of Science. 



described a neat little footmark from the Joggins shore, 

 which, on further consideration, he thinks should be 

 separated as the type of a new genus. 



It is much smaller than Marsh's type of Baropus, and 

 has a broad and rounded sole to the hind foot, while that 

 of Baropus projects backward in a heel. The parallel 

 grouping of the three inner toes, separate from the outer 

 one, is also a distinctive character. 



All the species were small, short legged, low-bodied 

 animals, apparently of sluggish habit. 



Barillopus unguifer, Matt. (PL, Figs. 5a and 5b) is the 

 type. There are two other species from the Joggins. 



The name is a diminutive of Baropus = heavyfoot. 



In Barillopus there seems less reason to question the 

 relation of the two kinds of footmarks than in the two 

 genera first described, because one is not only larger than 

 the other, but the constant forward direction of most of 

 the toes in this footmark would indicate a hind foot. If 

 one examines the footprint left by a frog or an alligator, 

 he will be struck by the radiate arrangement of the toes 

 of the fore foot as compared with those of the hind ; 

 hence it seems quite in accord with the ordinary attitude 

 of the toes in the Crocodilia and the tailless amphibians 

 that these footprints should be relatively what we have 

 assumed them to be. 



Ornithoides n. gen. 



Under Hylopus (?) trifidus, Sir Win. Dawson has 

 described a peculiar little track in which the number of 

 toes is reduced to three on each foot. It has thus fewer 

 toes than any other form of this fauna, and seems worthy 

 of a separate generic name. 



The toes are all directed forward in a fan shape, and 

 thus have a distant resemblance to those of the wading 

 birds, but are much more massive. 



The track left by this creature resembled that of 

 Barillopus in two respects ; first that the stride was short, 



