An introduction to the osteology of the Mammalia : being the substance of the course of lectures delivered at the Royal college of surgeons of England in 1870 / By William Henry Flower.

  • Flower, William Henry, 1831-1899.
Date:
1870
Catalogue details

Licence: Public Domain Mark

Credit: An introduction to the osteology of the Mammalia : being the substance of the course of lectures delivered at the Royal college of surgeons of England in 1870 / By William Henry Flower. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    each end by epiphyses. The xiphisternum has an elongated, narrow, ossified portion, and terminates in a laterally ex- panded cartilage, which may contain one or two endosteal bony patches. In the MoNOTREMATA the Ornithorhynchus (Fig. 43) has a broad presternum (/j-), with a small partially ossified pro-osteon (po) in front of it; three keeled mesosternal segments {nis), which commence to ossify in pairs, and no xiphisternum. The Echidna agrees in all important respects, but it has an ossified xiphisternum. The T-shaped bone, Interclavide or epistermim {ic) in front of the presternum, which connects it with the clavicle, and which appears to have no homologue among the other Mammalia, belongs more properly to the shoulder-girdle than to the sternal apparatus.