Philometra selaris n. sp. from Selar crumenophthalmus, scanning electron micrographs of male. A, B: Cephalic end, sublateral and apical views (arrows indicate amphids). C, D: Caudal end, subdorsal and apical views (arrows indicate phasmids). E, F: Region of cloacal aperture, lateral and apical views (arrows indicate phasmids). Abbreviations: a, submedian pair of cephalic papillae of external circle; b, submedian cephalic papilla of internal circle; c, lateral cephalic papilla of internal circle; d, pair of larger caudal papillae near cloacal aperture; f, caudal mound; g, gubernaculum; o, oral aperture.