OCR Text |
Show 500 DR. ST. G. MIVART ON THE PINNIPEDIA. [May 19, Proportions borne to the spine from the atlas to the end of the sacrum, taken at 100, o f :- Cervical region Dorsal region Lumbar region Sacral region Caudal region Pectoral limb Pelvic limb Humerus Radius Femur Tibia 3rd metacarpal 3rd metatarsal 1st metacarpal 1st metatarsal 3rd phalanx of 3rd digit (manus) .... 3rd phalanx of longest digit (manus) 3rd phalanx of 3rd digit (pes) 3rd phalanx of longest digit (pes) Basion to premaxilla Length of palate Breadth of palate „ zygomata „ brain-case ,, interorbital space Length of lower dental series P. 4 Length of P. 4 Breadth of P. 4 Length of Phoca. 18-8 49-5 20-1 11-4 12-3 33-4 51-8 100 10-0 91 19-9 3-3 46 4-4 6-7 2-2 24 1*8 3-6 18-3 8-2 4-7 11*7 8-2 1-2 54 0-7 0-3 06 Otaria. 216 49-7 18-7 99 14-3 50-8 49-7 13-4 140 99 163 4-6 5-8 87 73 1-7 2-9 2-0 29 187 12-8 35 131 5-9 2-5 6*0 0-4 0-3 0-5 Trichechus 16-5 47-8 24-5 110 150 35-3 52-3 15-2 11-7 12-0 17-2 3-5 5-8 5-0 60 1*3 29 1-7 1-6 16-5 8-5 3-2 11-3 8-2 36 39 Proportions borne to the skull from basion to premaxilla, being taken at 100, of:- „ zygomata „ interorbital space Length of lower dental series Length of -- P. 4 Breadth of - Length of - - Phoca. 45 0 26 0 64-0 430 70 280 40 20 3-5 Stenorhynchus. 40-2 21-1 53-8 364 102 32-2 4-4 2-5 4-4 Cystophora. 50-9 11-7 84-3 49 0 16-8 19-2 31 11 2-7 Otaria. 68-7 18-7 70-3 31-8 13-7 321 2-5 1*8 2-8 Trichechus. 51-5 196 68-7 500 21-8 23-6 |