Measurements. A B C D E F G H I J mm. mm. mm. mm. mm. mm. mm. mm. mm. mm. Total length 900 877 [a]807 850 963 882 855 797 945 915 Length of rostrum 491 480 [a]397 470 550 480 476 463 550 514 Height from vertex to 433 450 ... ... 515 471 481 349 440 465 inferior border of pterygoids Distance from tip of rostrum 664 670 ... ... 735 682 673 614 735 726 to posterior free margin of pterygoids (median) Distance from the same to 617 621 [a]538 600 690 623 589 590 708 676 anterior end of nasals Breadth between centers of 495 513 [b]499 488 563 [b]486 492 393 476 530 orbits Breadth between zygomatic 511 513 ... 505 573 531 530 415 503 548 processes Breadth between temporal fossæ 270 309 325 300 349 317 311 242 302 313 Breadth of rostrum at base 319 331 345 324 380 337 320 249 307 337 Breadth of rostrum at middle 102 117 [b]94± 107 120 109 112 83 112 113 Breadth of premaxillæ at same 54 67 58 62 78 70 75 44 62 80 point Depth of rostrum at middle 66 81 80 79 118 117 113 50 77 107 Breadth of premaxillæ in 176 177 184 205 221 230 219 128 176 234 front of nares Greatest breadth of anterior 74 77 77 90 98 103 108 70 76 112 nares[c] Greatest length of temporal 161 158 154 149 152 140 146 133 143 155 fossa Greatest depth of temporal 81 73 77 79 87 74 89 67 80 76 fossa Length of orbit (ant.-post.) 131 133 132 130 137 126 117 113 134 132 Distance from anterior end of 78 92 82 70 83 89 85 61 82 99 orbit to maxillary notch Length of tympanic bulla ... ... ... ... 53 ... ... 54 ... 55 Breadth of tympanic bulla ... ... ... ... 24 ... ... 37? ... 25 Length of mandible ... 769 ... ... ... ... ... 679 ... 842 Length of symphysis ... 170 ... ... ... 184 ... 149 ... 176 Depth of mandible at coronoid ... 153 ... ... ... ... ... 133 ... 153 [a] About 150 mm. lacking from end of beak. [b] A little abraded. [c] Taken on a level with the curve of the inner margin of the premaxillæ. Is only approximate. SEX CHARACTERS.