ME. ST. GrEOEGrE MIVAET ON THE SKELETON OE THE PEIMATES. 
405 
Hapale differs from all other Primates in — 
1. The small length of the radius compared with that of the spine. 
2. The small length of the os innominatum compared with that of the scapula. 
3. The degree to which the tibia sometimes exceeds the femur in length. 
4. The laterally compressed ultimate phalanges of all the digits except the 
hallux. 
Indris. 
This remarkable Lemuroid has the whole hind limb, when compared with the 
whole fore limb, longer than in any other Primate * except Galago ; and this is still 
more marked when the pelvic limb minus the pes is compared with the pectoral one 
minus the manus f . 
The proportion borne by the length of the humerus to that of the spine is less than 
in any other of the Primates except Perodicticus and Lemur. 
The length of the radius is greater, as compared with that of the humerus, than in any 
other Primate except Tarsius. That of the manus is to the rest of the pectoral limb 
greater than in any other except Cheiromys. 
The length of the os innominatum, as compared with that of the femur, is less than 
in any other Primate except Tarsius. 
That of the femur, compared with that of the humerus, is greater than in any other 
except Tarsius. 
The same is the case as regards the tibia. 
The proportion borne by the hallux to the spine is greater than in any other of the 
Primates except Tarsius, Cheiromys, sometimes Hylobates, and perhaps Ateles. The 
same is the case as regards its metatarsal. 
The length of the hallux, as compared with that of the longest digit of the pes, is 
greater than in any Primate except the Chimpanzee, Arctocebus, and Man. 
The proportion of the hallux to the pollex is greater than in any other Primate (in 
which the pollex has two phalanges) except Loris. 
The length of the hallux (with its metatarsal), compared with that of the pes, is greater 
than in any other Primate except perhaps Arctocebus. 
The proportion borne by the third digit (without its metatarsal) to the pes is greater 
than in any other Primates except Loris and Cheiromys ; but Hylobates comes very 
near. 
Indris differs from all other Primates in — 
1. The dorsal portion of the groove near the axillary margin of the scapula. 
2. The great relative size of the posterior inferior (in Man inferior anterior) spinous 
process of the ilium. 
* Excluding, of course, Propithecus and other forms, the skeletons of which I have had no opportunity of 
examining. 
t The great difference as to length between the arm and the leg in this genus is noticed in ‘ Man’s Place 
in Nature,’ pp. 72 & 73. 
3 i 2 
