348 RHINOCEROS. 
observations to their differences as compared with the 
recent Rhinoceros indicus (p. 84), or to their want of sufhi- 
ciently distinguishing characters (p. 76). 
Dr. Buckland possesses some very fine and perfect speci- 
mens of the humerus of the Rhinoceros tichorhinus, from 
Lawford, of one of which Cuvier has given figures in pl. 
xv. figs. 5 and 6, of the volume above cited. The humerus 
is remarkable in the Rhinoceros, and especially in the great 
extinct tichorhine species, for its strength and the enormous 
thickness of the upper end; in one of the Lawford speci- 
mens the circumference at that end is two feet, the entire 
length of the bone being one foot, seven inches. The great 
tuberosity is developed into a strong curved plate, which 
bends over the broad and deep bicipital groove: the 
deltoid crest, continued downwards from the tuberosity 
also manifests prodigious strength. Cuvier remarks that 
the trochlear articular surface for the radius is more 
oblique, and its lower crest longer, in the fossil, than in the 
recent Rhinoceros of India. 
Fig. 129. I subjoin two views 
of an ungual phalanx of 
a Rhinoceros (fig. 129), 
which was obtained from 
the brick marl, at Gray’s 
Thurrock, Essex ; an op- 
portunity of examining 
this fossil, and of giving 
agi Sag, Wa ee ee these illustrations, having 
aay Ail mori) , 
been kindly afforded me 
by Mrs. Mills, of Lexden 
Park, near Colchester. 
The upper figure shows the rough anterior surface of the 
bone, sculptured by the canals for the blood-vessels, sup- 
