Helminthomorpha

Figures 1–5.Ommatoiulus chambiensis sp. n. paratype,gonopod structures. 1 Right gonopod, mesal view 2 Left promerite, posterior view 3 Left posterior gonopod, mesal view 4 Right posterior gonopod, anterior view 5 Right posterior gonopod, posterior view. Abbreviations: ap apical process, ds distal process of the solenomerite, F fovea, g seminal groove, i incision on lateral margin of the promerite, lp lateral apical process of promerite, M mesal ridge, Ms mesomerite, P promerite, pr triangular process of the solenomerite, Px paracoxite, S solenomerite, se serrations, sp spikes, T remnant of telopodite, wl wrinkled lamella. Scale bar: 0.1 mm.

Figure 16.SEM, Endoterga of mid-body tergite. A Sphaeromimus ivohibe sp. n., paratype B Sphaeromimus saintelucei sp. n., holotype from Isaka-Ivondro C Sphaeromimus andrahomana sp. n., holotype D Sphaeromimus andrahomana cave specimen. Abbreviations: (1) = inner area with large spines and long setae; (2) = area with cuticular patterns; (3) = outer area with row(s) of marginal bristles and tergite margin.

Figure 6.Ommatoiulus chambiensis sp. n. paratype,right posterior gonopod. Interactive rotating SEM image. [Morphbank # 831160–831177, 831188]

Figure 17.Sphaeromimus saintelucei sp. n., holotype. A left leg 9 B right anterior telopod, anterior view C left anterior telopod, posterior view D right anterior telopod, lateral view E left posterior telopod, anterior view ♀ left posterior telopod, posterior view. Abbreviations: syn = syncoxite. Scale bars = 1 mm.

Figures 7–12.Ommatoiulus crassinigripes sp. n. paratype,gonopod structures. 7 Left promerite, posterior view 8 Right posterior gonopod, lateral view 9 Right posterior gonopod, anterior view 10 Right posterior gonopod, mesal view 11 Right posterior gonopod, posterior view 12 Right posterior gonopod latero-posterior view.Abbreviations: ap distal process of the promerite, ap1 apical mesal process, Co coxite, ds distal process of the solenomerite, F fovea, g seminal groove, ho hook-shaped process, hp1, hp1 distal processes of the solenomerite, i lateral margin incision of the promerite, M mesal ridge, Ms mesomerite, mp distal blunt process of the mesal ridge, n notch of the solenomerite, pr triangular process of the solenomerite, Px paracoxite, S solenomerite, T remnant of telepodite. Scale bar: 0.1 mm

Figure 15.Sphaeromimus ivohibe sp. n., holotype. A coxae and prefemora 1 with stigmatic plates B left leg 9 C coxae and prefemora 2 with gonopore and stigmatic plate D right anterior telopod, anterior view E right anterior telopod, posterior view ♀ right anterior telopod, lateral view G left posterior telopod, anterior view H left posterior telopod, posterior view. Abbreviations: Cx = coxa; Pre = prefemur; St = stigmatic plate. Scale bars = 1 mm.

Figure 13.Ommatoiulus crassinigripes sp. n. paratype,right posterior gonopod. Interactive rotating SEM image. [Morphbank # 831189–831207]

Figure 1.Photographs of living Sphaeromimus. A Sphaeromimus musicus (de Saussure & Zehntner, 1897) from Tsimelahy, upper left to lower left: red colour morph, black colour morph, normal colour morph, the similar looking sympatric Zoosphaerium blandum (de Saussure & Zehntner, 1902) B Sphaeromimus lavasoa sp. n. C Sphaeromimus andrahomana sp. n. cave specimen. Not to scale.

Figures 14–18.Ommatoiulus kefi sp. n. holotype, gonopod structures. 14 Left promerite, posterior view 15 Left posterior gonopod, posterior view 16 Right posterior gonopod, anterior view 17 Right posterior gonopod, mesal view 18 Right posterior gonopod, mesal view. Abbreviations: al apical lobe of the promerite, al1 apical folded lamella of the solenomerite, Co coxite, ds distal process of the solenomerite, F fovea, g seminal groove, lb lateral lobe, m1, m2 apical processes of the mesomerite, M mesal ridge, me median lobe, Ms mesomerite, n notch of the solenomerite, pr triangular process of the solenomerite, Px paracoxite, S solenomerite, T telopodite. Scale bar: 0.1 mm

Figure 16.SEM, Endoterga of mid-body tergite. A Sphaeromimus ivohibe sp. n., paratype B Sphaeromimus saintelucei sp. n., holotype from Isaka-Ivondro C Sphaeromimus andrahomana sp. n., holotype D Sphaeromimus andrahomana cave specimen. Abbreviations: (1) = inner area with large spines and long setae; (2) = area with cuticular patterns; (3) = outer area with row(s) of marginal bristles and tergite margin.

Figure 19.Ommatoiulus kefi sp. n. holotype, right posterior gonopod. Interactive SEM image. [Morphbank # 831208-831227]

Figure 18.Sphaeromimus andrahomana sp. n.. A left leg 9, holotype B left leg 9, cave specimen C anterior telopod, anterior view D right anterior telopod, posterior view E left posterior telopod, anterior view ♀ left posterior telopod, posterior view. Scale bars = 1 mm.

Figures 20–25.Ommatoiulus khroumiriensis sp. n. paratypes, gonopod structures. 20 Right promerite, posterior view 21 Right posterior gonopod, mesal view 22 Right posterior gonopod, lateral view 23 Right posterior gonopod, meso-posterior view 24 Right posterior gonopod, anterior-mesal view 25 Right posterior gonopod,anterior view. Abbreviations: ap distal process of the promerite, ap2 lobed process, Co coxite, ds distal process of the solenomerite, F fovea, g seminal groove, hp3, hp4 distal processes of the solenomerite, i lateral incision of the promerite, mp blunt mesal process, M mesal ridge, Ms mesomerite, n notch of the solenomerite, pr triangular subapical process of the solenomerite, Px paracoxite, S solenomerite. Scale bar: 0.1 mm.

Figure 2.Sphaeromimus titanus sp. n., A, I female paratype B–H holotype A habitus B first right stigmatic plate and coxa 1 C: left leg 9 D left coxa 2 with gonopore and stigmatic plate 2 E left anterior telopod, anterior view ♀ left anterior telopod, mesal view G left anterior telopod, posterior view H left anterior telopod, lateral view I coxae and prefemora 2 with vulvae. Abbreviations: Cx = coxa; O = operculum; Pre = prefemur; St = stigmatic plate. Scale bars = 1 mm.

Figure 26.Ommatoiulus khroumiriensis sp. n. paratype, left posterior gonopod. Interactive SEM image. [Morphbank # 831016–831034]

Figure 3.Sphaeromimus titanus sp. n., C female paratype, A, B holotype A left posterior telopod, anterior view B left posterior telopod, posterior view C female subanal plate with washboard. Scale bars = 1 mm.

Figures 27–30.Ommatoiulus xenos sp. n. holotype,gonopod structures. 27 Right promerite, posterior view 28 Right posterior gonopod, mesal view 29 Right posterior gonopod, antero-lateral view 30 Right posterior gonopod, posterior view. Abbreviations: Co coxite, ds distal process of the solenomerite, F fovea, fl folded lamella, g seminal groove, i lateral incision of the promerite, M mesal ridge, mp distal process, Ms mesomerite, pr blunt process of the solenomerite, Px paracoxite, S solenomerite. Scale bar: 0.1 mm.

Figure 4.Sphaeromimus titanus sp. n., holotype, SEM, left antenna. A lateral view B detail of disc with apical cones.

Figures 31–34.Ommatoiulus xerophilus sp. n. paratype,gonopod structures. 31 Left gonopod, mesal view 32 Rightpromerite, posterior view 33 Rightposterior gonopod, mesal view 34 Rightposterior gonopod, latero-posterior view. Abbreviations: ap distal process of the promerite, Co coxite, ds distal process of the solenomerite, F fovea, g seminal groove, M mesal ridge, Ms mesomerite, P promerite, Px paracoxite, S solenomerite, se serrations, wl wrinkled lamella. Scale bar: 0.1 mm.

Figure 5.SEM, Endoterga of mid-body tergite. A Sphaeromimus titanus sp. n., holotype B Sphaeromimus vatovavy sp. n., holotype. Abbreviations: (1) = inner area with large spines and long setae; (2) = area with cuticular patterns; (3) = outer area with row(s) of marginal bristles and tergite margin.

Figure 35.Ommatoiulus xerophilus sp. n. paratype, right posterior gonopod. Interactive SEM image. [Morphbank # 831246–831263]

Figure 1.Photographs of living Sphaeromimus. A Sphaeromimus musicus (de Saussure & Zehntner, 1897) from Tsimelahy, upper left to lower left: red colour morph, black colour morph, normal colour morph, the similar looking sympatric Zoosphaerium blandum (de Saussure & Zehntner, 1902) B Sphaeromimus lavasoa sp. n. C Sphaeromimus andrahomana sp. n. cave specimen. Not to scale.

Figures 36–39.Ommatoiulus zaghouani sp. n. holotype, gonopod structures. 36 Left promerite, posterior view 37 Left posterior gonopod, mesal view 38 Left posterior gonopods, anterior view 39 Left posterior gonopods, postero-lateral view. Abbreviations: bp1, bp2: small bumps on the apical lateral process, Co coxite, ds distal process of the solenomerite, F fovea, fl folded lamella, g seminal groove, M mesal ridge, Ms mesomerite, i lateral incision on the promerite, Px paracoxite, rp apical mesal process of the promerite, S solenomerite, se serrated process, tp: triangular distal process. Scale bar: 0.1 mm.

Figure 10.Sphaeromimus lavasoa sp. n., male paraype, SEM, left antenna. A lateral view B detail of disc with apical cones.