FIGURE 3. Foot and claw morphology. A. Generalised leg. B in A dichotomous key to the genera of the Marine Heterotardigrades (Tardigrada)

FIGURE 3. Foot and claw morphology. A. Generalised leg. B. Chimaeric foot showing various claw configurations. External claw at left of image has a single point (sometimes called a "simple claw"), the next internal claw has two points, and the final two claws have three points. C. Paratanarctus foot, redrawn from D'Addabbo Gallo et al. (1992). D. Mutaparadoxipus foot, redrawn from Gross et al. (2014). E. Batillipes foot, redrawn from Kristensen & Mackness (2000). F. Megastygarctides foot, redrawn from Hansen & Kristensen (2006). ap = accessory point, bm = basal membrane, cl = claw, co = coxa, cr = calcar, cs = claw sheath, db= disc brace, dc = disc, de = distal stalk enlargement, di = digit, ed = external digit, fe = femur, id = internal digit, pa = adhesive pad, pe = peduncle, pp = primary point, ppa = proximal adhesive pad, pta = pretarsus, sp = secondary point. ta = tarsus, ti = tibia, to = toe.