FIGURE 15. A–I Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)

FIGURE 15. A–I Nanohystrix hammerae n. sp. adults, transmitted light compound microscope images of dissected parts of gnathosoma. A, dorsal aspect of subcapitulum and palps with enlarged insert showing medial notch in posterior margin (m.no); B, distal subcapitulum in strong DIC, dorsal aspect, showing birefringence of rutellum; C, same, but with focus on tip of labrum; D, right posterolateral corner of subcapitulum, lateral aspect (anterior to right), showing postpalpal seta and tubercle; E, chelicera, ventral aspect; F. chelicera, adaxial aspect, with insert showing lamellated organ; G, enlargement of ventrodistal region of cheliceral trochanter (cf. E), showing marginal spines and tectum with hyaline fringe (black arrow); H, proximodorsal region of chelicera showing porose cuticle with spines; I, chelicera in strong DIC illumination, focused internally to show levator tendon of movable digit and associated muscles. All composites of 5–20 layers. Abbreviations: αf (abaxial fissure), c (junction of manubrium with birefringent rutellum), ep (postpalpal seta), l.or (lamellated organ), Ls (labrum), l.mu (levator muscle), l.te (levator tendon of movable digit), Mn (manubrium), m.no (medial notch), m.sp (marginal spines), Ru (rutellum), sub.t (subcapitular tubercle), Tr (trochanter) tr.t (trochanteral tectum), vb (vesicular band). Scale bars: 50 Μm (E, F, I); 25 Μm (A); 10 Μm (B–D, G, H).