OCR Text |
Show 232 DR. R.W. SHUFELDT ON [Apr. 1, (11) With a simple laryngeal apparatus and trachea, but with long bronchi. (12) With a thick, fleshy, unsheathed, and slightly forked tongue. (13) With curved, conical, grooved, sharp-pointed teeth: when this reptile bites, these teeth transmit the poison from the poison-glands to the wounds they inflict. (14) With the secretion of either submandibular gland of a poisonous nature, and with the four ducts of the gland opening into the mouth by foramina situated beneath its lining membrane, near the bases of the teeth. (15) With lacrymal and Harderian glands present in either orbit, and with the pecten present in either eye. (16) With a fully developed tympanum for the ear. (17) With sixty-four vertebrae in its spinal column, of which eight are cervical, twenty-two are dorsal, five lumbar, two sacral, and twenty-seven in the tail. They are of the proccelous type. (18) With a sternum that is entire. (19) With the dermal tubercles covering the fore part of the skull, co-ossifying therewith in the adult. (20) With almost complete atrophy of the zygomatic arch, only a bit of its posterior extremity remaining. (21) With the frontal bone excluded from participating in the formation of the superior margin of either orbital periphery, and this by the union of the post- and prefrontal bones. (22) With a single parietal bone imperforated by a parietal foramen. (23) With a stout epipterygoid that reaches the parietal roof above. (24) With a free dorsal margin to the supraoccipital (i. e. that edge is not in contact with the ventral surface of the parietal). (25) With clavicles that are of nearly uniform calibre throughout their lengths. (2G) With a straight interclavicle that is small and nodular in front, dilated behind. Anteriorly, it stands between the mesial ends of the clavicles. (27) With only the ulnare, radiale, and centrale composing the proximal row of carpus, and with five carpalia in the distal row. (28) With digits of manus and pes, in which, counting from first to fifth, inclusive, the number of phalangeal joints run 3, 2,3, 4, 5, 3, respectively. (29) With a well-developed pectineal process, upon either side, on the anterior margin of the pelvis. (30) With a small os cloacae. (31) With a very small, but ossified patella in the pelvic limb. (32) With a single bone forming the proximal row of the tarsus, but the sutural traces in it, standing among tibiale, fibulare, |