Figure 18. Hesperodiaptomus kenai Wilson. Male. (a) 5th legs, anterior view, Sumas L., B.C.; (b) 5th legs, posterior view (redrawn after Wilson 1959); (c) left 1st antenna, segments 10-20 , Sumas L., B.C.; (d) detail left leg, exopod 2 anterior view (redrawn after Wilson 1959).