Fig. 7 in Taxonomy, genetic diversity, and phylogeny of the Antarctic mud dragon, Polacanthoderes (Kinorhyncha: Echinorhagata: Echinoderidae)

Fig. 7. Polacanthoderes shiraseae sp. nov., scanning electron micrographs of females (A–E) and a male (F). A, overview from lateroventral side; B, head (right side); C, segments 1–4, lateral view; D, segments 1–5, ventral view; E, segments 4–7, lateral view; F, segments 4–6, laterodorsal view. Black arrows and black arrowhead indicate sensory spot and type-2 glandular cell outlet, respectively. Abbreviations (ac), acicular spine; LA, lateral accessory; LD, laterodorsal; LV, lateroventral; MD, middorsal; ML, midlateral; oos, outer oral style; phc, pharynx crown; psps, primary spinoscalid; (sac), small acicular spine; SD, subdorsal; sec, sector number; SL, sublateral; sps, spinoscalid followed by the corresponding ring number (tu), tube; VM, ventromedial. Digits after abbreviations (except for sec and sps) indicate the corresponding segment number.