part_of adult leg adult tarsus Fig. 4-20, with permission from the editor, Journal of Parasitology. TADS:0000283 TADS:0000283 Terminal segment of the leg that bears the claws, pulvillus (when present) and the Haller's organ. Some authors subdivide the tarsus into a posterior metatarsus and the anterior tarsus, but this is a superficial separation since there is no joint or muscle distinction. default_namespace