(TEETH, LOWER JAW.) M. Transverse diameter of last molar ·026 Height of highest point above cingulum of last molar ·023 Fore-and-aft diameter of second molar ·0285 Transverse diameter of second molar ·023 Height of second molar ·0215 Length of fourth premolar ·021 Width of fourth premolar ·015 Height of fourth premolar ·020 Length of third premolar ·020 Width of third premolar ·015 Height of third premolar ·014 _Vertebræ._ _Cervical region_ (Plate VI., Fig. 1).--(Only one preserved, probably fifth or sixth.) The centrum is short, compared with the dorsals, but is much longer than the cervical centra of the _Proboscidea_; it is broad and depressed, oval in form, and slightly opisthocœlous. The zygapophyses are developed upon tuberous projections of the pedicles; they are large, flat, and in the same plane with each other. The diapophyses are very slender and short, and but slightly heavier than the parapophyses, with which they unite, enclosing a large vertebraterial canal. At the anterior margin of the parapophysis, a small pointed process projects downward. The pedicles are low and very heavy, bounding a narrow neural canal. The epiphyses are not so completely ossified as they are in the dorsal region. _Dorso-lumbar region_ (Plate VI., Figs. 2, 3, 4, 5),--(Description based upon nine dorsals and two lumbar vertebræ.) The centra are large, subtriangular, and slightly compressed; they are opisthocœlous, but less so than in the _Proboscidea_. They increase in size slowly but regularly from before backwards. In the middle dorsal region they are excessively expanded laterally for the posterior-costal attachments; but become less broad and higher as they recede in the series. In the middle of the series the centra are marked by a prominent hypophysial keel. In the anterior dorsals the costal surfaces are developed almost entirely upon the pedicles, and are two in number. These are very large in about the sixth and seventh, and meet. They decrease in size as they recede. In the middle region the posterior costal surfaces are small, lozenge-shaped facets, and are developed upon thin lateral projections of the centra. The centrum of the last dorsal is heavy, resembling the centra of the lumbar, from which it is distinguished by a single pair of small costal surfaces, developed, half on the pedicles and half on the centrum.