ME. ST. GEORGE MIYAET ON THE SKELETON OE THE PRIMATES. 
413 
os innominatum ; crest without a marked sigmoid curvature ; inferior (in Man anterior) 
spinous processes of ilium little marked ; symphysis pubis much elongated ; tubero- 
sities of ischium large, everted, and always distant from the spine of the ischium; 
sciatic notches never very concave ; brim of pelvis never heart-shaped ; linea aspera 
only moderately marked ; rotular surface supported but little more by the peroneal 
condyle than by the tibial one ; surface of tibia for the peroneal condyle convex antero- 
posteriorly ; crest of tibia never very sharp ; posterior border of articular surface for 
astragalus not descending below its anterior border ; peroneal malleolus strongly pro- 
jecting outwards, but only descending about as much as the tibial one ; hallux never 
equalling three-fourths the length of the longest digit of pes ; tuberosity of os calcis, 
with its long axis, always bent inwards below ; distal articular surface of entocuneiforme 
convex ; metatarsal of hallux with no articular surface for the metatarsal of the index ; 
third digit of pes extending further forwards ; phalanges of pes long, broad, and 
flattened or concave beneath, much like those of the manus ; either pollex or hallux 
with two phalanges, but not always both with two. 
SIMIIN2E. 
Proportion of whole pectoral limb to spine, estimated at 100, from about 142 to 
about 220 ; pelvic limb always shorter than pectoral one ; angle formed by the vertebral 
and axillary margins of the scapula, from about 22° to about 35° ; spine of scapula not 
always extending to the vertebral margin ; anterior vertebral angle well defined ; spine 
not grooved behind (below) at its base ; surface for teres major little marked : acromion 
as high as coracoid or higher ; coracoid long ; anterior margin of scapula less than, or not 
much more than half the length of, the axillary one ; clavicle more than one-fifth of the 
length of the spine ; humerus more than half of the length of the same ; deltoid surface 
of humerus not much marked ; external condyle projecting outwards ; styloid process of 
ulna not so large as the distal end of the shaft of that bone; manus more than one-third 
of the length of the spine ; ilium more or less largely expanded ; tuberosity of ischium 
only sometimes flattened inferiorly; only profile of acetabulum, and not its cavity, visible 
when outer surface of ilium is looked at ; femur shorter than humerus ; outer condyle 
decidedly smaller than the inner one. 
TROGLODYTES. 
Length of whole pectoral limb less, or but little more than once and a half the 
length of the spine ; angle of axillary margin of scapula, and its glenoid surface, about 
120° to 125° ; no os intermedium ; os pisiforme large ; cuneiforme not articulating 
directly with the ulna ; length of os innominatum more than half of that of the spine ; 
os calcis more than one-tenth of the length of the spine. 
T. GORILLA. 
Proportion of supraspinous fossa of scapula very large as compared with infraspinous 
fossa; spine not reaching to the vertebral margin of scapula; posterior vertebral angle 
