CURVE OF SPEE IN MAMMALS 
177 
TABLES 2-16~Continued 
TABLE 13 
Camelus baclrianus {haclrian camel) 
NUMBER OF SPECIMEN 
a 
/3 
7 
RADIUS 
CENTER 
ANGLE 
INCLI- 
NATION 
ANGLE 
OF 
FOSSA 
MANDIB- 
ULARIS 
ARTICU- 
LAR 
BASIO- 
NASAL 
ANGLE 
GNATIUC 
INDEX 
DENTAL 
INDEX 
degrees 
degrees 
degrees 
5657 
10.6 
14.0 
23.6 
22.1 
27.9 
30.0 
9.0 
179 
66 
6266 
10.2 
13.7 
23.3 
25.9 
22.7 
19.0 
13.5 
176 
66 
Average 
10.4 
13.9 
23.5 
24.0 
25.3 
24.5 
11.3 
178 
66 
TABLE 14 
Dicotyles sp. (peccary) * 
2199 
5.9 
4.3 
9.9 
10 
5 
32.6 
36.0 
126 
42 
6202 
6.0 
4.3 
10.2 
15 
6 
22.8 
33.5 
180 
63 
6207t 
6.0 
3.7 
9.6 
16 
5 
20.9 
7451 
5.8 
4,2 
9.8 
17 
2 
19.2 
33.0 
184 
61 
Average 
5.9 
4.1 
9.9 
15 
0 
23.9 
34.2 
163 
55 
* The degree of the inclination angle of the fossa is not given because the temporo- 
mandibular joint of this animal is a ginglymus. 
t The upper incisors and both the first and second bicuspids were lost from this speci- 
men, so that the line of articulation, and consequently, the inclination angle of the fossa, 
the articular basio-nasal angle, and the dental index, could not be determined. 
TABLE 15 
Lama huanacho {guanacho) 
5632 
5.5 
10.5 
15.4 
13.6 
23.4 
67.5 
18.8 
171 
46 
TABLE 16 
Didelphys marsupialis {opossum)* 
5971 
6005 
6273 
6025 
3.2 
3.1 
3.1 
3.1 
6.3 
6.4 
6.6 
6.9 
29.4 
27.7 
27.7 
26.4 
16.0 
17.5 
17.0 
16.5 
189 
192 
198 
187 
73 
68 
72 
69 
Average 
3.1 
6.5 
27.7 
16.7 
192 
71 
* The degree of the inclination angle of the fossa was not given because the temporo- 
mandibular joint of this animal is a ginglymus. 
