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Fig.16. Aquattuor submajor Enghoff, 2015. A–D in A mountain of millipedes VIII. The genus Aquattuor Frederiksen, 2013 revisited - a new species from the Udzungwa Mts, Tanzania, another from the Nguru Mts, and introduction of the first pair of male legs as a source of taxonomic characters (Diplopoda, Spirostreptida, Odontopygidae)

Fig.16. Aquattuor submajor Enghoff, 2015. A–D. Male from Udzungwa Mts National Park, Kidatu (NHMD 621653), left gonopod telopodite. A. Posterior view. B. Anterior view. C. Distal (ventral) view. D. Basal (dorsal) view. E–F. Male from Udzungwa Mts National Park, Kidatu (NHMD 621654), right gonopod telopodite, broken into two pieces. E. Basal part. F. Tip of telomere. Abbreviations: btl = basal telomeral lamella; mpl = meso-posterior telomeral lamella; slm = solenomere; tm = telomere. Scale bars: A–E = 0.1 mm; F = 0.02 mm.

Fig. 13 in A mountain of millipedes VIII. The genus Aquattuor Frederiksen, 2013 revisited - a new species from the Udzungwa Mts, Tanzania, another from the Nguru Mts, and introduction of the first pair of male legs as a source of taxonomic characters (Diplopoda, Spirostreptida, Odontopygidae)

Fig. 13. Aquattuor mollilobus sp. nov., paratype, ♂ (NHMD 621648). Left gonopod telopodite. A. Anterior view. B. Posterior view. C. Submesal view. D. Distal (ventral) view. E–F. Tip of telomere. Abbreviations: slm = solenomere; tm = telomere. Scale bars: A–D = 0.1 mm; E–F = 0.02 mm.

Fig. 8 in A mountain of millipedes VIII. The genus Aquattuor Frederiksen, 2013 revisited - a new species from the Udzungwa Mts, Tanzania, another from the Nguru Mts, and introduction of the first pair of male legs as a source of taxonomic characters (Diplopoda, Spirostreptida, Odontopygidae)

Fig. 8. Aquattuor spp., males, left leg of first pair. A. A. stereosathe Enghoff, 2015, paratype, ♂ (NHMD 621650): setae same length as in normal walking legs. B. A. longipala Enghoff, 2015, specimen from Udzungwa Mts National Park, Mito Mitatu (NHMD 621642): setae of femur shortened. C. A. mollilobus sp. nov., paratype, ♂ (NHMD 621646): all setae shortened. Scale bars = 0.1 mm.

Fig. 4. A–C in A mountain of millipedes VIII. The genus Aquattuor Frederiksen, 2013 revisited - a new species from the Udzungwa Mts, Tanzania, another from the Nguru Mts, and introduction of the first pair of male legs as a source of taxonomic characters (Diplopoda, Spirostreptida, Odontopygidae)

Fig. 4. A–C. Aquattuor nguruensis sp. nov., holotype, ♂ (VMNH110617), first pair of legs. Notice mite larva ("hypopus") on left femur. D–F. A. denticulatus Frederiksen, 2013, paratype, ♂ (NHMD 621640), left leg of first pair. A, D. Anterior view. B, E. Sublateral view. C, F. Sub-ventral view. Abbreviation: pfd = prefemoral depression. Scale bars = 0.1 mm.

Fig. 2. Aquattuor udzungwensis Enghoff, 2015 in A mountain of millipedes VIII. The genus Aquattuor Frederiksen, 2013 revisited - a new species from the Udzungwa Mts, Tanzania, another from the Nguru Mts, and introduction of the first pair of male legs as a source of taxonomic characters (Diplopoda, Spirostreptida, Odontopygidae)

Fig. 2. Aquattuor udzungwensis Enghoff, 2015, specimens from Chita, heads, lateral view. A. Male (NHMD 621667). B. Female (NHMD 621667). Scale bars = 0.1 mm. The arrow points at the distoventral stipital expansion lobe in the male.

Fig. 3 in A mountain of millipedes VIII. The genus Aquattuor Frederiksen, 2013 revisited - a new species from the Udzungwa Mts, Tanzania, another from the Nguru Mts, and introduction of the first pair of male legs as a source of taxonomic characters (Diplopoda, Spirostreptida, Odontopygidae)

Fig. 3. Aquattuor spp., first pair of male legs. A–C. A. fasciatus (Attems, 1896), non-type male from Zanzibar (NHMD 621641). D–F. A. claudiahempae Enghoff & Frederiksen, 2015, paratype from Kilimanjaro (NHMD 621638). G–I. A. claudiahempae, specimen from Udzungwa Mts (NHMD 621639). A, D, G. Anterior view. B, E, H. Sublateral view. C, F, I. Ventral view. Abbreviation: pfp = prefemoral process. Scale bars = 0.1 mm.

Fig. 1 in A mountain of millipedes VIII. The genus Aquattuor Frederiksen, 2013 revisited - a new species from the Udzungwa Mts, Tanzania, another from the Nguru Mts, and introduction of the first pair of male legs as a source of taxonomic characters (Diplopoda, Spirostreptida, Odontopygidae)

Fig. 1. Collecting sites for Aquattuor spp. in the Udzungwa Mts. Based on Marshall et al. (2010: fig. 1); inset by permission of the Eastern Arc Mountains Conservation Endowment Fund.

Fig. 6 in A mountain of millipedes VIII. The genus Aquattuor Frederiksen, 2013 revisited - a new species from the Udzungwa Mts, Tanzania, another from the Nguru Mts, and introduction of the first pair of male legs as a source of taxonomic characters (Diplopoda, Spirostreptida, Odontopygidae)

Fig. 6. Aquattuor spp., first pair of male legs. A–C. A. mollilobus sp. nov., paratype, ♂ (NHMD 621647). D–F. A. stereosathe Enghoff, 2015, paratype, ♂ (NHMD 621650). A, D. Anterior view. B, E. (Sub)- lateral view. C, F. (Sub)-ventral view. Abbreviations: dpl = distal prefemoral lobe; pfp = prefemoral process. Scale bars = 0.1 mm.

Figure 33 in Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species

Figure 33. Eutrichodesmus reductus sp. n., ♀ (A-E) & ♁ (F-G) paratypes; A, head, ventral view; B, midbody segments, ventral view; C, midbody paratergum with ozopore, dorsal view; D, E, texture of tegument, dorsal view; F, G, left gonopod, mesal and lateral views, respectively. – Scale bars: A, B, 0.1 mm; C, 0.02 mm; D, 0.05 mm, E, 0.01 mm; F, G, 0.1 mm.

Figure 30 in Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species

Figure 30. Eutrichodesmus multilobatus sp. n., ♁ paratype; A, B, right gonopod, mesal and lateral views, respectively. – Scale bar: 0.3 mm.

Figure 29 in Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species

Figure 29. Eutrichodesmus multilobatus sp. n., ♀ paratype; A, midbody segments, ventral view; B, posterior part of body, ventral view; C, cross-section of a midbody segment, caudal view; D, part of head with left antenna, subdorsal view; E, texture of tegument, dorsal view; F, metatergal seta. – Scale bars: A, B, E, 0.1 mm; C, 0.2 mm; D, 0.05 mm; F, 0.02 mm.

Figure 27 in Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species

Figure 27. Eutrichodesmus multilobatus sp. n., ♀ paratype; habitus, lateral view. (Photographed not to scale by L. Deharveng).

Figure 26 in Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species

Figure 26. Eutrichodesmus griseus sp. n., paratypes ♀ (A, B) and ♁ (C, D, E); A, limbus, dorsal view; B, metatergal seta, sublateral view; C-E, left gonopod, mesal, lateral and subfrontal views, respectively. – Scale bars: A, 0.01 mm; B, 0.005 mm; C-E, 0.2 mm.

Figure 22 in Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species

Figure 22. Eutrichodesmus asteroides sp. n., ♀ (A-D) and ♁ (E-F) paratypes from Hang Cha Noi Cave; A, midbody metaterga, sublateral view; B, C, texture of tegument, dorsal view; D, setae on antennae; E, F, left gonopod, mesal and lateral views, respectively. – Scale bars: A, 0.05 mm; B, 0.1 mm; C, 0.01; D, 0.005 mm; E, F, 0.2 mm.

Figure 9 in Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species

Figure 9. Eutrichodesmus aster sp. n., subadult paratype from Tham Han Cave; A, habitus, lateral view; B, anterior part of body, lateral view; C, midbody segments, lateral view; D, posterior part of body, lateral view; E, metatergal seta, sublateral view; F, anterior part of body, frontodorsal view. – Scale bars: A-D, F, 0.5 mm; E, 0.001 mm.

Figure 7 in Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species

Figure 7. Eutrichodesmus regularis sp. n., ♁ paratypes; A-F, gonopods, frontoventral, submesal, mesal, mesal, mesal and lateral views, respectively. – Scale bars: A-C, 0.1 mm; D, 0.05 mm; E, F, 0.2 mm.

Figure 6 in Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species

Figure 6. Eutrichodesmus regularis sp. n., ♁ paratype; A, texture of tegument, dorsal view; B, metatergal tubercle, dorsal view; C, metatergal seta, dorsal view; D, cross-section of a midbody segment, caudal view; E, midbody legs, caudal view; F, segments 7 and 8, ventral view; G, left gonopod in situ, caudoventral view. – Scale bars: A, B, 0.05 mm; C, 0.01 mm; D, F, 0.2 mm; E, G, 0.1 mm.

Figure 5 in Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species

Figure 5. Eutrichodesmus regularis sp. n., ♁ paratype; A, habitus, lateral view; B, E, anterior part of body, frontodorsal and ventral views, respectively; C, midbody segments, dorsal view; D, F, posterior part of body, dorsal and ventral views, respectively. – Scale bars: A, C, 0.5 mm; B, D-F, 0.2 mm.

Figure 4 in Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species

Figure 4. Eutrichodesmus regularis sp. n., ♁ paratype; habitus, lateral view. (Photographed not to scale by L. Deharveng).

Figure 2 in Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species

Figure 2. Eutrichodesmus distinctus sp. n., ♁ paratype; A, habitus, lateral view; B, E, anterior part of body, lateral and dorsal views, respectively; C, F, midbody segments, lateral and dorsal views, respectively; D, G, posterior part of body, lateral and dorsal views, respectively. – Scale bars: A, 0.5 mm; B-G, 0.2 mm.