Cephalopharyngeal skeleton. a dorsal view b side view c ventral view. ant, antenna.; ante sp, anterior spiracle; d brg., dorsal bridge; d corn, dorsal cornu; epiphr scl, epipharyngeal sclerite; esph, esophagus; hypophr scl, hypopharyngeal sclerite; lab lb, labial lobe; lab scl, labial sclerite; mand, mandibule; md th, mandibular tooth; mx plp, maxilar palp; pastm b, parastomal bar; phr, pharynx; ocl dp, ocular depression; tnt phgm, tentorial phragm; v corn, ventral corn. Scale bar: 3 mm.