Fig. 3.

Morphology of L4 of B. malayi. a Cephalic extremity of 21 dpi larva, lateral and dorsoventral view, respectively. b Reproductive system of 9 dpi female larva, lateral view. c Posterior body end of 21 dpi male larva, lateral view; note developing vas deferens attached to rectum (arrow). d Posterior body end of 21 dpi female larva, lateral view. e Stage of development of vagina, 21 dpi larva, lateral view. f Stage of development of vagina, 31 dpi larva, lateral view. Scale bars in micrometers