422 
MR. ST. GEORGE MIVART ON THE SKELETON OF THE PRIMATES. 
the spine ; cuboid nearly half the length of the os calcis ; length of os calcis less than 
one-third of that of the tibia. 
MICROCEBUS *. 
Os calcis one-third of the length of the tibia. 
GALAGO. 
Entire pelvic limb more than once and a half the length of the entire pectoral 
one, both with and without manus and pes ; angle of spine of scapula with its axillary 
margin less than in any other of the Primates measured, except Hylobates ; supraspinous 
fossa nearly equal in size to the infraspinous one; spine of scapula approaching close to 
axillary margin and glenoid surface ; clavicle considerably more than one-tenth of the 
length of the spine ; shaft of humerus nearly straight ; tuberosities not quite rising to 
the level of the top of the head of the bone ; ilio-pectineal line forming the actual 
inferior (anterior) margin of the ilium; a small ilio-pectineal eminence; peroneal 
trochanter small, rising very slightly above the neck of the femur, but projecting much 
peronead beyond its shaft; a large third trochanter; trochanteric fossa very small; 
outer condyle extending back almost as much as the inner one ; patella small, not much 
elongated; os calcis and naviculare very much elongated, the first being nearly one- 
fifth of the length of the spine ; cuboides but very little more than one quarter of the 
length of the os calcis, which last is more than one- third of the length of the tibia ; 
whole pes about half the length of the spine ; pes more than once and a half the 
length of the manus ; tarsus nearly one-fifth of the length of the spine. 
NYCTICEBINiE. 
Pectoral limb sometimes longer than the spine ; anterior vertebral angle well defined ; 
spine ending not far from the posterior end of the first third of the vertebral margin, 
which margin it almost always reaches ; infraspinous fossa more or less exceeding the su- 
praspinous one near the glenoidal end of the spine (Plate XI. fig. 6) ; spine of the scapula 
not nearly approaching the axillary margin; no marked surface for the teres major; 
glenoid surface, as it were, twisted above (Plate XII. fig. 2) ; clavicle more than one- 
tenth of the length of the spine, with a more or less marked sigmoid curvature, and no 
acromial expansion ; tuberosities of humerus always more or less below its head ; supi- 
nator ridge slightly or strongly marked; supracondyloid foramen sometimes absent; 
olecranal fossa sometimes perforated ; styloid process of ulna always exceedingly long, 
sometimes curved ; os intermedium constant ; pisiforme very small ; sometimes an extra 
ossicle in transverse ligament of carpus ; index digit sometimes at its minimum ; tube- 
rosities of ischium approaching near to the ischial spine (Plate XIII. fig. 3) ; posterior 
inferior (inferior anterior) spinous process absent or very minute ; crest of ilium remark- 
ably short ; pelvis very narrow transversely ; no pubic spine ; ilio-pectineal line forming 
the actual inferior (anterior) margin of the ilium (Plate XIII. fig. 3) ; symphysis pubis 
* For further details see Dr. Peteb’s ‘ Reise nach Mossambique,’ p. 17. 
