. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. ANATOMY OF VERTEBRATES. from the first to the fifth, and in length from the second to the fifth. In the Land tortoises, the fifth toe is reduced to a metatarsal rudiment: the others are short and thick, fig. 118, each with two phalanges, the second sup- porting a claw, and adapted, like those of the fore foot, for burrowing. The two extremes of modi- fication of the hind foot in the chelonian series are presented by the Turtle and Tortoise : the great comparative weight and bulk of the body to be supported on dry land in
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. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. ANATOMY OF VERTEBRATES. from the first to the fifth, and in length from the second to the fifth. In the Land tortoises, the fifth toe is reduced to a metatarsal rudiment: the others are short and thick, fig. 118, each with two phalanges, the second sup- porting a claw, and adapted, like those of the fore foot, for burrowing. The two extremes of modi- fication of the hind foot in the chelonian series are presented by the Turtle and Tortoise : the great comparative weight and bulk of the body to be supported on dry land involve a form of limb and foot resembling that in the Elephant; whence the largest kind of Land-tortoise has been termed ' Testudo elepliantopus.^ The general homology of the pelvic bones of the Crocodile has been jDreviously discussed, pp. 67-69, and illustrated, figs. 55, 56, 57. The serial homology of the two hffimapoph3'sial elements derives satis- factory elucidation from their crocodilian condition. Of those of the scapular arch, called clavicle' and 'coracoid, ' in the vertebrates pos- sessing both, the anterior very rarely enters into the formation of the joint for the appendage; whilst the posterior invariably does so. 119. Bones of lea: -iiitl lout, Tcsiiulo. 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 work.. Owen, Richard, 1804-1892; Cornell University. College of Veterinary Medicine. Flower-Sprecher Veterinary Library. fmo. London, Longmans, Green