Dorso-palanter radiograph of the tarsal bones in adult chinkara proximal intertarsal (calcaneoquartal) joint. 1, distal inter tarsal joint; 2, tarsometatarsal joints; 3, articulation of calcanious and central and fourth tasral bone (on the lateral side of the hock); 4, articulation of central and fourth tasral bone and large metatarsal (on the lateral side of the hock); 5, superimposed first tarsal bone and 6, second tarsal bone.