. Annual report - New York Zoological Society. Zoology. RED-BELLIED SALAMANDER, DIEMYCTYLUS TOROSUS SPOTTED SALAMANDER, SALAMANDRA MACULOSA In the radiograph of the copperhead (Aiicistrodon contortrix) the vertebrse, corresponding- in number approximately to the gas- trosteges, are easily counted. In general the importance of the radiograph for natural history purposes seems to have been neglected. It shows at once, for instance, the relations of the skeletal framework to the exterior outline and to some of the soft parts, especially the swim-bladder, the natural positions of the bones of the


. Annual report - New York Zoological Society. Zoology. RED-BELLIED SALAMANDER, DIEMYCTYLUS TOROSUS SPOTTED SALAMANDER, SALAMANDRA MACULOSA In the radiograph of the copperhead (Aiicistrodon contortrix) the vertebrse, corresponding- in number approximately to the gas- trosteges, are easily counted. In general the importance of the radiograph for natural history purposes seems to have been neglected. It shows at once, for instance, the relations of the skeletal framework to the exterior outline and to some of the soft parts, especially the swim-bladder, the natural positions of the bones of the skeleton, undistorted by the drying of the ligamentary attachments, which takes place in the mounted skeleton, and dif- ferences between closely related forms, where superficial charac- ters are not well marked. The advantage of seeing bones in their natural relations and without art effect is apparent. The delicate parts are preserved, especially the connective-tissue bones. Radiographs of reptiles, mammals, birds, etc., would undoubt- edly be suggestive to the paleontologist in attempting to define the exterior outlines of extinct forms. Many parts of the skeleton are seen clearly enough in the radio- graph for purposes of study and drawing. In fact, the drawing of. 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 New York Zoological Society. New York, The Society


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Keywords: ., bookauthorne, bookcentury1900, bookdecade1900, booksubjectzoology