. Outlines of zoology. Zoology. SKELETON. 499 The branchial arches are divided into various parts, of which the most interesting are the two superior pharyngeal bones which lie in the roof of the pharynx and bear teeth, and their counterpart, the inferior pharyngeal bone, which lies on the floor of the pharynx, and is likewise toothed. The Limbs and Girdles.—The dermal rays of the pectoral fin are attached to four small brachial ossicles; these articu- late with a dorsal scapula and a more ventral coracoid; both of these are attached to the inner face of a large clavicle, which almost meets it
. Outlines of zoology. Zoology. SKELETON. 499 The branchial arches are divided into various parts, of which the most interesting are the two superior pharyngeal bones which lie in the roof of the pharynx and bear teeth, and their counterpart, the inferior pharyngeal bone, which lies on the floor of the pharynx, and is likewise toothed. The Limbs and Girdles.—The dermal rays of the pectoral fin are attached to four small brachial ossicles; these articu- late with a dorsal scapula and a more ventral coracoid; both of these are attached to the inner face of a large clavicle, which almost meets its fellow of the other side. Fio. i6S.—Pectoral girdle and fill of Cod. (P'rom Edinburgh Museum of Science and Art.) , Fin rays; /;.<?,, brachial ossicles ; cor., coracoid ; sc, scapula ; c/., clavicle; ^ post-clavicle; ^ supra-clavicle; /.^., post- temporal. in the mid-ventral line of the throat. From the clavicle a slender post-clavicle extends backwards and downwards; while a stout supra-clavicle extends from the dorsal end of the clavicle upwards to articulate with a forked post- temporal, which articulates with the back of the skull. It must not be assumed that the elements of this girdle are directly comparable to those of a higher Vertebrate, although the nomenclature is 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 Thomson, J. Arthur (John Arthur), 1861-1933; Newbigin, Marion I. (Marion Isabel), 1869-1934; Smith, Preserved, 1880-1941. fmo. New York, D. Appleton & Co.
Size: 1563px × 1599px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
