58 PROFESSOR HUXLEY ON THE OSTEOLOGY OF THE GENUS GLYPTODON. 
Measurements of the Skulls. 
A. The new specimen. inches. 
Total length of the palate in a straight line 9*50 
Width between the inner edges of the alveolar series T75 
Width between the outer edges of the alveolar series, opposite third tooth 2*95 
„ 5j „ „ last tooth . 2*8 
„ „ „ „ first tooth . 2*6 
Hinder edge of the last alveolus in front of the posterior nares . . . 0-5 
Outer edge of the malar process to the centre of the palate . . . . 5’5 
The extreme breadth of the skull therefore = 11*0 
Vertical height of skull from frontal bones to palate at fourth tooth . . 6*0 
From end of outer edge of orbit to the same point on the opposite side . 7*2 
Summit of the frontal region to the ends of the malar processes . . . 9-5 
Mandible : — 
Extreme length from the symphysis to the angle 10*7 
Extreme height from the summit of a condyle to a flat surface on which 
the jaw rests 9*3 
Depth of the horizontal ramus at the third tooth 3*2 
Width at the symphysis 2*9 
Width between the inner edges of the alveoli opposite the first tooth 
# (remains the same throughout) 3*1 
Width between the outer edges at the same point 31 
Width between the outer edges at the third tooth 3*25 
B. The type specimen. 
Extreme length from nasal bones to the level of the occipital condyles . 12*7 
„ „ „ superior occipital ridge . . . 105 
Breadth at the front part of the orbits 6*8 
„ at the interorbital constriction 4*3 
„ across the occiput, about 5*8 
Height of the occiput . 2 - 6 
Distance between the inner edges of the articular surfaces for the 
condyles of lower jaw 4*25 
§ 2. The Vertebral Column. 
The remains of this very interesting part of the organization of Glyptodon are, unfor 
tunately, in a somewhat imperfect state, though enough exists to demonstrate its alto- 
gether unique character. 
