| OCR Text |
Show 1869.] DR. J. E. GRAY ON THE TORTOISES. 193 flat, with three rather thick ridges, the central one long, the side ones short. The lower jaw very strong, thick, bent up in the centre in front and acute ; the alveolar surface very broad, slightly concave the whole length of the sides. Length 1 inch 7\ lines, width 1 inch 5 lines. 13. DAMONIA. Head very large, covered with a hard thin skin. Nose high, truncated; nostrils in a small disk notched out on the upper edge of the very high convex upper beak. Eyes lateral, subsuperior. Sides of the face shelving outwards below. Zygomatic arch strong, wide. The labial edges of the upper beak slightly arched, bent inwards. Lower jaw very strong, convex and rounded in front below, with a strong, sharp-edged, broad central tip. The alveolar disk of the upper and lower jaws very broad, the upper flat, and the lower Fig. 8. Damonia macrocephala. concave. The internal nostrils subcentral, with a short oblong sunken space behind each. The thorax oblong, more or less distinctly three-keeled ; the vertebral shields six-sided, as broad behind as before; marginal plates dilated over the hinder limbs. Sternal |
