. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. FIG. 123. FIG. 124. FIG. 123.—Pelvic, fin and part of girdle of Ceratodus, after , axial skeleton of fin; pil, iliac process; pirn, processus impar; r, radialia. FIG. 124.—Skeleton of pectoral fin of Xenacanthus, after Fritsch. from the hind limb. The numerous radials are jointed transversely (fig. 109), permitting more flexibility, and these may be arranged entirely on one side of the basalia (uniserial), or the metapterygium may be prolonged as an axis, and while most of the radialia are on the prea
. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. FIG. 123. FIG. 124. FIG. 123.—Pelvic, fin and part of girdle of Ceratodus, after , axial skeleton of fin; pil, iliac process; pirn, processus impar; r, radialia. FIG. 124.—Skeleton of pectoral fin of Xenacanthus, after Fritsch. from the hind limb. The numerous radials are jointed transversely (fig. 109), permitting more flexibility, and these may be arranged entirely on one side of the basalia (uniserial), or the metapterygium may be prolonged as an axis, and while most of the radialia are on the preaxial side, some may occur on the postaxial side (biserial) as seen in the carboniferous shark, Xenacanthus (fig. 124). In the recent species the skeleton of the fin is continued by 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 Kingsley, J. S. (John Sterling), 1854-1929. Philadelphia, P. Blakiston's son & co.
Size: 2413px × 1035px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1912
