. A manual of zoology. 5°4 MANUAL OK ZOOLOGY caZ cuib cttn In the proximal row are two bones, the astragalus (ast) and the calcaneum (<'<?/), both articulating with the tibia; the calcaneum presents behind a long calcaneal process. The distal row contains three bones, the mesocuneiform, ectocunei- form, and cuboid {cub) ; the ento- cuneiform, which commonly forms the most internal member of this row in other mammals, is not pres- ent as a separate bone. There are four metatarsals, the hallux or first digit being absent. Each of the digits has three pha- langes, which are similar in chara
. A manual of zoology. 5°4 MANUAL OK ZOOLOGY caZ cuib cttn In the proximal row are two bones, the astragalus (ast) and the calcaneum (<'<?/), both articulating with the tibia; the calcaneum presents behind a long calcaneal process. The distal row contains three bones, the mesocuneiform, ectocunei- form, and cuboid {cub) ; the ento- cuneiform, which commonly forms the most internal member of this row in other mammals, is not pres- ent as a separate bone. There are four metatarsals, the hallux or first digit being absent. Each of the digits has three pha- langes, which are similar in character to those of the manus. The ccelom of the rabbit differs from that of the pigeon in being divided into two parts by a trans- verse muscular partition, the dia- phragm. The anterior part, or thorax, contains the heart and the roots of the great vessels, the lungs and bronchi, and the posterior part of the oesophagus. The posterior part or abdomen contains the stom- ach and intestine, the liver and pancreas, the spleen, the kidneys, ureters and urinary bladder, and the organs of reproduction. The teeth (Fig. 299) are lodged in the pre-maxillas, the maxillae, and the mandible. In the pre-maxillae are situated four teeth, the four upper incisors. Of these the two anterior are very long, curved, chisel-shaped teeth, which are. irjzr Fig. 303. — Lepus cuniculus. Skeleton of pes; ast, astrag- alus; cal, calcaneum; cub, cuboid; am, cuneiforms; nav, navicular. in sockets or alveoli. 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, T. Jeffery (Thomas Jeffery), 1850-1897; Haswell, William A. (William Aitcheson), 1854-1925. New York, The Macmillan Company; London, Macmillan & Co. ,Ltd.
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