. Bulletin - American Museum of Natural History. Natural history; Science. Fig. 15. Ungual phalanges. Side and top views. 1 and 4, Agriochasrus lati- frons\ 2 and 3, Oreodon culbertsoni. One-half natural si7<\ surface is deeply excavated to fit the strongly convex surfaces of the median phalanges. The ungual phalanges of Oreodon are simply hoofs of the ordinary primitive Artiodactyle type, so that no comparison is necessary. The Hind Limb.—There is no great disproportion in length between the fore and hind limbs of any of the species of Agrio- c/hvius, so far as our material will permit one
. Bulletin - American Museum of Natural History. Natural history; Science. Fig. 15. Ungual phalanges. Side and top views. 1 and 4, Agriochasrus lati- frons\ 2 and 3, Oreodon culbertsoni. One-half natural si7<\ surface is deeply excavated to fit the strongly convex surfaces of the median phalanges. The ungual phalanges of Oreodon are simply hoofs of the ordinary primitive Artiodactyle type, so that no comparison is necessary. The Hind Limb.—There is no great disproportion in length between the fore and hind limbs of any of the species of Agrio- c/hvius, so far as our material will permit one to judge. The femur slightly exceeds the humerus in length, the tibia is a trifle longer than the radius, and the manus and pes are Fig. 16. Pelvis of Agriochcerusguyotianus. Two-fifths natural size. 'The pelvis in its general form closely resembles that of Oreodon. The ilium is prolonged in front of the acetabulum somewhat more than the ischium is behind it, the disparity in length between the two bones being about equal to that seen in Oreodon. It is considerably expanded, and its anterior inferior angle is produced into a prominent hook-shaped spine. The narrow contracted portion, just in advance of the acetabulum, is of moderate length, and the transition into the expanded portion is more gradual than in Oreodon, where it is quite sudden. In the pig, deer and sheep, the concavity of the ilium is divided into a superior and an infe- rior portion by a longitudinal ridge, which terminates at the. 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 American Museum of Natural History; Allen, J. A. (Joel Asaph), 1838-1921. New York [American Museum of Natural History]
Size: 1834px × 1363px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectnaturalhistory, booksubjectscience
