. A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London ... Reptiles, Fossil. 114 MAEINE EEPTILES OF THE OXEOED CLAT. and others similarly situated, as new ossifications in the postaxial cartilage, and in many cases he is probably right; he proposes the name "first epipodial supernumerary" for the bone here regarded as pisiform. All the three usual bones of the proximal row of carpals are flat polygonal elements, which, when fully ossified, fit closely together as well as against the radius and
. A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London ... Reptiles, Fossil. 114 MAEINE EEPTILES OF THE OXEOED CLAT. and others similarly situated, as new ossifications in the postaxial cartilage, and in many cases he is probably right; he proposes the name "first epipodial supernumerary" for the bone here regarded as pisiform. All the three usual bones of the proximal row of carpals are flat polygonal elements, which, when fully ossified, fit closely together as well as against the radius and ulna and the distal carpals, making with them a close pavement. The radiale (^rad.) unites with the radius, intermedium (int.), and the first and second distal carpals. The intermedium [int.] has a small surface for union with the radius and a long one for the ulna; it also joins the radiale, ulnare, and the second and third distal carpals. The ulnare (uln.) unites proximally with the ulna and pisiform (if present); it also articulates with the intermedium, the third distal carpal, and the fifth metacarpal. The distal carpals appear to be only three in Text-fis. Pelvis of Noihosaurus sp., from left side, showing the union of the ilium, ischium, and pubis in a triradiate suture to form the acetabulum. (3S675, | nat. size.) acet., acetabulum ; il., ilium ; is., ischium ; , pubic foramen ; pit., pubis. number, the fifth metacarpal, as already noted, articulating directly with the ulnare. They are polygonal bones, somewhat smaller than the proximal row; the first carries the first digit only, the second the second and third digits, although in some cases there may be a slight contact also with the first. The third distal carpal carries the fourth digit, and on its outer (postaxial) side it has a surface for contact with the preaxial face of the metacarpal of the fifth digit. The metacarpals in some cases are flattened like the carpals, but, as a rule, are somewhat cylindr
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectreptile, bookyear1910
