OCR Text |
Show 90 DR. ST. GEORGE MIVART ON THE GENUS CYON. [Feb. 18, 2. CYON ALPINUS. Colour normally white or whitish, at least in winter ; hair very long and woolly. M2 large. I subjoin certain osteological dimensions of Cyon javanicus with comparisons between it and Canis lupus var. occidentalis and C. familiaris var. dingo. Length of cervical region ... Length of lumbar region Atlas to end of sacrum Pectoral limb Pelvic limb Humerus Radius to root of styloid process Femur Tibia to root of malleolus ... Third metacarpal Third metatarsal Pollex metacarpal Index metatarsal Hallux metatarsal Pollex, total length Hallux, total length Cyon javanicus. 16-5 240 190 4-0 63-5 37-0 47-5 135 12-0 15-5 14-3 5-5 6-7 4-5 1-7 5-5 11 3-4 1-6 Canis lupus. var. occidentalis. 21-5 260 200 40 71-5 67 0 76-0 220 21-5 24-2 240 9-8 105 87 30 9-3 1-4 6-3 30 Canis familiaris var. dingo. 16-0 24-0 18-5 50 63-5 470 54-0 16-5 160 18-0 17-4 6-4 71 5-7 20 6-3 1-2 4-3 1-8 Basion to ovalionx Spheniodeum to gnathion ... Breadth of nasals Interorbital breadth Between postorbital processes Breadth o f craniu m Breadth of zygomata Longest incisor Cyon javanicus. 31 4-4 10-8 15-0 7-5 5-1 63 1-9 3-2 4-4 6-2 9-7 1-2 0-8 Canis familiaris var. dingo. 3-2 49 12-5 17-2 93 5-3 7-3 2-0 3-3 53 56 10-3 1-4 1-0 1 By ovalion I mean the middle point of a line extending from the hinder margin of one foramen ovale to the hinder margin of the other. 2 See P. Z. S. 1882, p. 465. By sphenoideum I mean the junction of the basi- and pre-sphenoids, which is generally distinguishable in the basis cranii of the Canidm. |