. On mammalian descent. Being nine lectures delivered in the theatre of the Royal College of Surgeons during February, 1884. Mammals. Xect. II.] SHOULDER-BONES OP DUCKBILL. 33 girdle carries a pair of epi-puUc (or so-called Marsupial) bones as in the Marsupials, in which they lie above or within the pouch, so that their use is not very apparent, for the " pocket" swings outside them. But their mor- phology is evident, for the pelvis of the Salamander, â, St â MJ+S Tig. 3.âShoulder-girdle and sternum (breast-tone) of OrnitfMrhynchus paradoxus, two-thirds natural size, , supr
. On mammalian descent. Being nine lectures delivered in the theatre of the Royal College of Surgeons during February, 1884. Mammals. Xect. II.] SHOULDER-BONES OP DUCKBILL. 33 girdle carries a pair of epi-puUc (or so-called Marsupial) bones as in the Marsupials, in which they lie above or within the pouch, so that their use is not very apparent, for the " pocket" swings outside them. But their mor- phology is evident, for the pelvis of the Salamander, â, St â MJ+S Tig. 3.âShoulder-girdle and sternum (breast-tone) of OrnitfMrhynchus paradoxus, two-thirds natural size, , supra-scapular region of scapula (shoulder-blade, sc); , middle scapular region ; cl, clavicle; , inter-clavicle, cr, ooracoid bone ; , epiooracoid; gl, glenoid cavity, the head of upper arm-bone (humerus); , manubrium (top or handle) of sternum ; st, sternum; , xiphoid end of sternum; , lower part of vertebral rib ; , intermediate rib (as in Lizards); , sternal rib. and also, indeed, that of the Skate, shows similar out- growths of the pubic region of the girdle. But it is in the front cincture, or shoulder-girdle, that we see the most remarkable signs of ancientness in the Prototheria. The scapula in them does not give off a. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Parker, William Kitchen, 1823-1890. London, Griffin
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmammals, bookyear1885
