. A book of whales. Whales. n8 A BOOK OF WHALES developed in the Rorquals, where the whalebone is shortest. The ribs are never attached to the vertebrae by more than one head, which is the tubercular head, , that articulating with the transverse process of the vertebrae. The sternum is always in one piece, and only a single pair of ribs articulate with it. It FIG. 19. Skull of Balccna australis, dorsal view. (From van Beneden and Gervais.). SO, Supra occipital. P, Parietal. F, Frontal. N, Nasal. (, the left nasal is represented as absent.) MX, Maxilla. PMX, Premaxilla. is always very s
. A book of whales. Whales. n8 A BOOK OF WHALES developed in the Rorquals, where the whalebone is shortest. The ribs are never attached to the vertebrae by more than one head, which is the tubercular head, , that articulating with the transverse process of the vertebrae. The sternum is always in one piece, and only a single pair of ribs articulate with it. It FIG. 19. Skull of Balccna australis, dorsal view. (From van Beneden and Gervais.). SO, Supra occipital. P, Parietal. F, Frontal. N, Nasal. (, the left nasal is represented as absent.) MX, Maxilla. PMX, Premaxilla. is always very small in proportion to the size of the body and does not represent a fused sternum of several segments, but the manubrium only. It is usual, perhaps, to divide the Mystacoceti into two families : the Balaenidae and the Balsenopteridae, This arrangement is that followed by Gray in his Catalogue. It is the arrangement found in many text-. 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 Beddard, Frank E. (Frank Evers), 1858-1925. London, J. Murray; New York, G. P. Putnam's sons
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Keywords: ., bookauthorbeddardf, bookcentury1900, bookdecade1900, bookyear1900
