. On the anatomy of vertebrates [electronic resource] . me line with the sacrum. The pubic bones,b, c, join the ilia at a right angle, and are in-clined to each other at an angle of 40°; they forma very short symphysis. There is a small ossi-fied patella. The feeble development of the vertebras in the longlumbar region, the small sacrum, and contracted pelvis are pointsof resemblance with the Bat-tribe; and, together with the longand slender bones of the extremities, relate to the slow move-ments of this climbing quadruped. In Lemur Catta I have found the pubic symphysis ossified; theilium has
. On the anatomy of vertebrates [electronic resource] . me line with the sacrum. The pubic bones,b, c, join the ilia at a right angle, and are in-clined to each other at an angle of 40°; they forma very short symphysis. There is a small ossi-fied patella. The feeble development of the vertebras in the longlumbar region, the small sacrum, and contracted pelvis are pointsof resemblance with the Bat-tribe; and, together with the longand slender bones of the extremities, relate to the slow move-ments of this climbing quadruped. In Lemur Catta I have found the pubic symphysis ossified; theilium has an epicotyloid ridge. The coracoid and acromial pro-cesses of the scapula are subequal. The humerus is perforatedabove the inner condyle. Two fabellae are usually attached tothe capsule of the knee-joint. The fourth digit is the longeston both limbs of all Lemurida. In Ilapale Jacchus the coracoid sends a short process backward. 1 The tarsal bones figured as those of Chiromys in civ. Lemurs, pi. v., belong tothe Otolicnus cravsicaudotus, civ. p. Pelvis of the slenderLemur, SKELETON OF QUADItUMANA. 543 The humerus is not perforated either above or between the con-dyles. The ungual phalanges are compressed and falcate, and thepollex is on a line with the rest of the digits of the fore-limb, notopposed to them. In the hind-limb the ungual phalanx of thehallux is depressed for the support of a nail, and it is opposed asa thumb to the other digits which have falcated ungual ilium is long and narrow, with a supracotyloid ridge. In theMarmoset ( Callithrix sciureus), the pollex is partially opposable ;as it is also in Cebus. Tn a young C. capucinus I have found thehumerus perforated both between the condyles and above theinner condyle. There are fabella3 behind the knee-joint. A sesa-moid is wedged between the entocuneiform and metatarsal of thehallux. A pair of sesamoids are developed beneath the proximaljoints of each of the toes, and a single sesamoid beneath t
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