Chap. XVr.] SOME OTHER MAMMAI.S. 285 



According to Owen, the convolutions of the laterrJ 

 asj^ect of the Hemispheres, around and above the ' fissure 

 of Sylvius,' are more undulating or interrupted — and 

 therefore less neatly defined — in the larger Herbivora than 

 among the larger Carnivora and Cetacea. This lack of 

 definition is, however, carried to an extreme degree in the 

 most richly convoluted brains of both types. 



