41. The rear edge of the jugal branch of the ectopterygoid, in front of the infratemporal fenestra , is deeply grooved. 42. The posterior wall of the supratemporal fenestra inclines dorsally so that it is visible when the skull is viewed in dorsal aspect. 43. The high projection comprises much of the upper margin of the mandibular fenestra , an opening along the side of the jaw. 44. It comes from the Occitan for a small window, and is ultimately from the Latin " fenestra " for window. 45. The quadratojugal joined the squamosal and sealed up the lateral temporal fenestra from the ancestral species ( " Paraplacodus " ). 46. The subsquamosal fenestra , an opening at the back of the skull determined by the shape of the squamosal, is almost absent. 47. The large skull opening, the " fenestra nasoantorbitalis ", is rectangular and represents 22 % of the snout length. 48. The teeth rows stretch from the very front of the head until the back edge of the " fenestra nasoantorbitalis ". 49. The bar under the second fenestra has also been lost and the jaws have extreme flexibility allowing the snake to swallow its prey whole. 50. Io reguarda per tu fenestra con mi oculo brillante como le auro, e io te dice quando il es tempore a levar te.
