ELEPHAS PRIMIGENIUS.—MANDIBLE. 
143 
Fig. 42, 
Fig. 43. 
E. primigenius, Ilford. (British E. primigenius, Ilford. (British 
Museum Collection, No. -j c T .) Museum Collection, No. 4= g „) 
Fig. 45. 
Fig. 44. 
JE. antiquus, British. (Collection of 
Geological Society of London.) 
Fig. 46. 
E. Asiaticus. (Collection of Royal College of 
Surgeons, No. 2664.) 
E. Asiaticus. (Collection of Royal College of 
Surgeons, No. 2674.) 
constantly varies, as will at once be very apparent from the woodcuts from p. 135 to p. 140; 
indeed, as a means of diagnosis the numbers and positions of the mental foramina are not 
reliable in any one species, recent or extinct. 
The following table gives the measurements of mandibles of the three extinct British 
species and the jaw of the Asiatic Elephant, with the view of showing the comparisons of 
the more important parts in individuals of about the same relative ages. 
