. The tailless batrachians of Europe. Frogs; Amphibians. SKELETON. 33 V. Skeleton. The skull is more or less strongly depressed, and remarkable for the extremely large orbits and the reduction in the number of elements. We have to distinguish between the chondrocranium, or primitive skull—consisting mainly of cartilage with a few ossified parts, witli a large fontanelle or membranous space in the interorbital region, and foramina for the exit of the cranial nerves,—and the membrane hones, which may be removed by maceration. The ossified parts of the chondrocranium, or cartilage bones (Fig. 11)

---

. The tailless batrachians of Europe. Frogs; Amphibians. SKELETON. 33 V. Skeleton. The skull is more or less strongly depressed, and remarkable for the extremely large orbits and the reduction in the number of elements. We have to distinguish between the chondrocranium, or primitive skull—consisting mainly of cartilage with a few ossified parts, witli a large fontanelle or membranous space in the interorbital region, and foramina for the exit of the cranial nerves,—and the membrane hones, which may be removed by maceration. The ossified parts of the chondrocranium, or cartilage bones (Fig. 11), are the ethmoid or sphenethmoid, form- ing a ring round the anterior part of the brain-case, the Fig. 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 Boulenger, George Albert, 1858-1937. London, Printed for the Ray society

---

Size: 1636px × 1526px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, booksubje, booksubjectamphibians