OCR Text |
Show 192 DR. J. E. GRAY ON THE TORTOISES. [Mar. Il, orbit lateral, superior, on the outer edge of the crown; zygomatic arch strong, broad, convex, rather wider than the orbit in front, so much so that the circular tympanic cavity behind is rather contracted in the middle. The palate flat; internal nostrils near the centre of the palate, from under a rather convex plate in front, and with a central keel in the wide sunken space behind them. The alveolar surface of the upper jaw very wide, quite simple, occupying all the front of the palate but a central triangular space, without any internal ridge. The lower jaw very strong, flattened out in front and on the sides of the front, without any gonyx, the upper edge simple, with a very broad, shelving, concave inner aveolar surface and an acute central point. Toes rather elongate, webbed to the claws, with band-like shields above. Fig. 7. Skull in the Museum of the College of Surgeons, no. 1057, without horny sheath. The palate flat; the aveolar process very wide, smooth, rather convex on the front part of the inner edge. The part of the palate behind the internal nostrils broad, sliglitly sunken, |