PART 2.] 
47 
Ljdekher: Stegodon Ganesa. 
portions in the cranium of Stegodon insignis , and might, therefore, he taken as evidence foi 
the specific identity of the two forms: I rather regard this position, however, as due only 
to the smaller size of the tusks ; while the greater size of the present cranium, and the form 
of the frontals and temporal fossae, serve to show that a smaller tusked form of Stegodon 
ganesa exists, without making any approach in the form of the upper cranium to the 
cranium of Stegodon insignis, so peculiarly modified in the upper regions. 
The occipital surface is much flattened, having an irregular hexagonal outline, of which 
the parietals form the longer superior border, and the condyles the shorter inferior border; 
on its outer side, this surface slopes away rapidly to form the posterior boundary of the 
temporal fossa ; the hollow for the insertion of the ligamentum nuchae commences about five 
inches above the foramen magnum, and is continued vertically upwards for a distance of 
eleven inches, averaging an inch and a half in width, and rather less in depth. 
The following measurements of this cranium are compared below with those of Colonel 
Baker’s specimen, figured in plate XXI of the Fauna Antiqua Sivalensis, and described at 
page 33 of the description of the plates to the above : — 
Measurement in inches of crania. 
Width of incisives at infra-orbital foramen 
"Width of ditto below ditto 
Length of cranium from occipital condyles to anterior border of molar 
alveolus 
Vertical height from condyles to sinciput... 
Lateral diameter across occipital condyles 
Ai item-posterior diameter of left condyle ... 
Transverse diameter of ditto 
Ditto ditto of foramen magnum ... 
Aiitero-posterior diameter ditto 
Diameter of widest part of supra-occipitai 
Ditto naso- prannaxillary fossa 
Interval between nasal fossa and post-orbital margin of frontal ... 
Extreme width of frontals ... 
Length of incisive (broken in specimen) ... 
Depth of zygomatic fossa 
Estimated width of cranium between centre of temporal fossa ... 
Height from lower margin of meatus auditorius ext emus to sinciput 
Ditto posterior margin of molar alveolus to sinciput 
Length from upper border of foramen magnum to posterior margin of 
molar alveolus 
Vertical height of orbit ... 
Transverse diameter of middle of left incisive slieath 
Vertical diameter of left incisive sheath ... 
Ditto of infra-orbital foramen 
Transverse ditto ditto 
Interval between distal ends of second molar 
Interval between proximal ditto ditto 
Length of right second molar 
Width of ditto ditto ditto at second ridge 
Ditto ditto ditto ditto at penultimate ditto 
Vertical height from posterior extremity of outer border of second molar 
alveolus to post-orbital process of frontal 
Distance between outer surfaces of second molars at fifth ridge ... 
A ntero-posterior diameter of meatus auditorius externus 
Transverse ditto ditto ditto ... 
Length from upper border of foramen magnum to tip of nasals ... 
From tip of nasals to jn*sem axillary protuberance 
Height from lower border of anterior zygomatic root to crown-surface of 
second molar ... 
Width of nasals at base 
Length of ditto 
Long diameter of posterior nares 
Transverse ditto ditto 
Present 
specimen. 
Col. Baker’s 
S, ganesa. 
6*5 
7*5 
6*5 
10*75 
25-0 
25-0 
25'0 
240 
9'0 
9*2 
5*0 
5*0 
4*9 
3*85 
3*0 
3*0 
29 
3*1 
28*1) 
28-2 
16*0 
16*0 
4*3 
4*o5 
27*5 
26*25 
21 0 
31*0 
4*5 
4*25 
17*0 
19*25 
20*0 
18*0 
30*0 
32*0 
9*0 
9*5 
8*9 
3*78 
8*0 
11*5 
7*8 
10*6 
3*7 
3‘85 
1*5 
4 0 
2*7 
5*2 
3*25 
16*0 
11*9 
4*3 
4*05 
5*5 
5*0 
21*5 
21*0 
13*5 
12*6 
1*2 
1*15 
1*0 
1*0 
55*0 
7*0 
25*0 
5*5 
3*0 
3*8 
1*6 
6*0 
3*0 
