. Bulletin of the British Museum (Natural History) Geology Supplement. FOSSIL AND RECENT 137. r p 1-4 cor 5mm Fig. 67. Pterothrissus gissu Hilgendorf. Pectoral girdle of right side in medial view. entirely by cartilage. In shape and disposition this radial resembles members of the cartilaginous distal radial series. This partially ossified distal radial, together with the base of the outermost fin-ray, fits into the depression upon the scapula. Of the 16 pectoral fin-rays only the first is unbranched. Little may be said of the length of the rays since the tips of the fin-rays were missing in a
. Bulletin of the British Museum (Natural History) Geology Supplement. FOSSIL AND RECENT 137. r p 1-4 cor 5mm Fig. 67. Pterothrissus gissu Hilgendorf. Pectoral girdle of right side in medial view. entirely by cartilage. In shape and disposition this radial resembles members of the cartilaginous distal radial series. This partially ossified distal radial, together with the base of the outermost fin-ray, fits into the depression upon the scapula. Of the 16 pectoral fin-rays only the first is unbranched. Little may be said of the length of the rays since the tips of the fin-rays were missing in all specimens examined. To judge by the width, the second is the longest pectoral ray. A small pectoral splint bone is associated with the base of the outermost ray. The proximal end of the splint is turned slightly upwards and markedly inwards to contact the small distal radial mentioned above. It is therefore unlike the pelvic splint bone in which the proximal end lies free in the body 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 British Museum (Natural History). London : BM(NH)
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