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Fig. 16 in Some nematodes from freshwater fishes in central Africa

Fig. 16. Gendria sp. from Pantodon buchholzi from Pantodon buchholzi Peters, male. A, B, C – anterior end of body, lateral, ventral and sub-dorsoventral views, respectively (internal structures not illustrated in B); D, E – cephalic end, apical and sub-dorsoventral views, respectively.

Fig. 9 in Some nematodes from freshwater fishes in central Africa

Fig. 9. Synodontisia thelastomoides Petter, Vassiliadẻs et Troncy, 1972 from Synodontis acanthomias Boulenger, scanning electron mi- crographs. A, B – cephalic end of male, apical and lateral views, respectively; C – region of cloaca and anterior part of tail, lateral view; D – region of cloaca, subventral view (arrows indicate subventral and lateral postanal papillae); E – median pair of postanal papillae (see arrows) on ventral caudal lobe situated some distance posterior to cloaca; F – body of male with distinct lateral alae, lateral view. Abbreviations: a – amphid; b – cephalic papilla; c – cephalic lamella; d – genital cone; e – pair of preanal papillae; f – postcloacal region with two pairs of postanal papillae; g – ventral caudal lobe bearing median pair of postanal papillae; h – cloacal aperture.

Fig. 28 in Some nematodes from freshwater fishes in central Africa

Fig. 28. Spinitectus polli Campana-Rouget, 1961 from Synodontis decorus Boulenger, scanning electron micrographs. A – anterior end of male, sublateral view; B – cephalic end of male, apical view; C – mouth, apical view (arrow indicates three pores); D – cephalic end of female, apical view (pseudolabia destroyed); E – anterior end of body, sublateral view; F – posterior end of male with distinct ventral precloacal cuticular ridges; G – caudal end of male, ventral view. Abbreviations: a – amphid; b – cephalic papilla; c – sublabium; d – pseudolabium; e – cloaca.

Fig. 21. Quimperia lanceolata Gendre, 1926 in Some nematodes from freshwater fishes in central Africa

Fig. 21. Quimperia lanceolata Gendre, 1926 from Ctenopoma cf. kingsleyae Günther, scanning electron micrographs of male. A – posterior end of body, lateral view; B – tail, lateral view (arrows indicate lateral postanal papillae). Abbreviations: c – cloacal aperture; s – ventral precloacal sucker.

Fig. 18 in Some nematodes from freshwater fishes in central Africa

Fig. 18. Gendria sp. from Pantodon buchholzi Peters, scanning electron micrographs of male. A – cephalic end, apical view; B – mouth, apical view; C – mouth with visible circumoral row of denticles, subapical view; D – deirid. Abbreviations: a – amphid; b – cephalic papilla.

Fig. 6 in Some nematodes from freshwater fishes in central Africa

Fig. 6. Cithariniella khalili Petter, Vassiliadẻs et Troncy, 1972 from Synodontis acanthomias Boulenger. A – anterior end of young female, lateral view; B, C – cephalic end, lateral and apical views, respectively; D – spicule and gubernaculum, lateral view; E – posterior end of young female, lateral view; F – posterior end of male, lateral view; G – distribution of caudal papillae in region of cloaca, ventral view; H – last pair of postcloacal papillae, ventral view; I – egg (only basal parts of filaments illustrated).

Fig. 12 in Some nematodes from freshwater fishes in central Africa

Fig. 12. Gendria longispiculata sp. n. from Schilbe grenfelli (Boulenger), scanning electron micrographs of male. A – posterior end of body, lateral view; B – subventral genital papilla located anterior to ventral sucker; C, D – caudal end, lateral and ventral views, respectively (arrows indicate genital papillae). Abbreviations: c – cloacal opening; d – ventral sucker; m – median precloacal papilla.

Fig. 5 in Some nematodes from freshwater fishes in central Africa

Fig. 5. Falcaustra piscicola (von Linstow, 1907) from Distichodus lusosso Schilthuis, scanning electron micrographs of male. A, B – cephalic end, sublateral and apical views, respectively; C – tail, subventral view (arrow indicates phasmid); D – detail of mouth, apical view; E – posterior end of body, ventral view; F – tail, ventral view. Abbreviations: a – amphid; b – cephalic papilla; c – lateral postanal papilla; e – median unpaired preanal papilla.

Fig. 17 in Some nematodes from freshwater fishes in central Africa

Fig. 17. Gendria sp. from Pantodon buchholzi Peters, scanning electron micrographs of male. A – anterior end, subventral view (arrow indicates lateral ala); B – same, lower magnification; C – anterior end, lateral view (arrow indicates lateral ala); D – cephalic end, subapical view from lateral side (arrow indicates protruding dorsal oesophageal tooth); E – cephalic end, subapical view oriented dorsoventrally. Abbreviations: a – amphid; b – cephalic papilla; c – deirid; e – excretory pore.

Fig. 15 in Some nematodes from freshwater fishes in central Africa

Fig. 15. Gendria sanghaensis sp. n. from Schilbe marmoratus Boulenger, scanning electron micrographs. A – tail of male, ventrolateral view (arrow indicates phasmid); B – median precloacal papilla. Abbreviation: e – cloacal aperture.

Fig. 20. Quimperia lanceolata Gendre, 1926 in Some nematodes from freshwater fishes in central Africa

Fig. 20. Quimperia lanceolata Gendre, 1926 from Ctenopoma cf. kingsleyae Günther, scanning electron micrographs. A, B – cephalic end of male, subdorsal and apical views; C – cephalic end of male with initiating lateral alae, subdorsal view; D – posterior end of male, ventrolateral view (arrow indicates phasmid); E – anterior end of male with distinct lateral alae, subdorsal view; F – deirid situated just posterior to posterior end of lateral ala, sublateral view; G – posterior end of male, ventral view (arrows indicate preanal papillae). Abbreviations: a – amphid; b – submedian double cephalic papilla; c – lateral ala; d – deirid; e – cloacal aperture; f – median precloacal papilla; g – ventral precloacal sucker.

Fig. 24 in Some nematodes from freshwater fishes in central Africa

Fig. 24. Dujardinascaris malapteruri (Baylis, 1923) from Malapterurus monsembeensis Roberts, female. A – anterior end of body, lateral view; B, C – cephalic end, dorsal and subventral views, respectively; D – tail, lateral view; E – egg.

Fig. 27 in Some nematodes from freshwater fishes in central Africa

Fig. 27. Spinitectus polli Campana-Rouget, 1961 from Synodontis decorus Boulenger. A – anterior end of gravid female, lateral view; B – same, higher magnification; C – cephalic end of male, apical view; D – mouth, apical view; E – tail of male, lateral view; F – tail of female, ventral view; G – posterior end of female, lateral view; H – posterior end of male, lateral view; I – caudal end of male, ventral view; J – egg.

Fig. 26. A, B in Some nematodes from freshwater fishes in central Africa

Fig. 26. A, B – Dujardinascaris sp. third-stage larva from Coptodon tholloni (Sauvage) (anterior and posterior body ends, lateral views).

Fig. 29 in Some nematodes from freshwater fishes in central Africa

Fig. 29. Spinitectus polli Campana-Rouget, 1961 from Synodontis decorus Boulenger, scanning electron micrographs. A, B – caudal end of male, sublateral and subventral views, respectively; C – tail of female, ventrolateral view; D – distal end of male tail, ventral view. Abbreviations: e – cloaca; f – anus.

Fig. 2 in A revision of Stemodiopsis Engl. (Linderniaceae) in South Africa

Fig. 2. Indumentum on stems of: A, D, Stemodiopsis buchananii var. buchananii, voucher Cron et al. 252 (J); B, E, S. buchananii var. pubescens, voucher Grosvenor 327 (SRGH); C, F, S. kamundii, voucher Balkwill & Balkwill 8262 (J); G, S. kamundii, voucher van der Schijff 3571 (PRE); H, I, S. rivae, voucher Pawek 12,752 (MO). Scale bars = 0.5 mm for A‒C & G‒H and 0.1 for D‒F & I.

Fig. 1 in A revision of Stemodiopsis Engl. (Linderniaceae) in South Africa

Fig. 1. Habit of: A, B, Stemodiopsis buchananii var. buchananii; C, D, S. kamundii. Photographers: A, Troos van der Merw in iNaturalist; B. Bart Wursten in Flora of Zimbabwe; C, Delia Oosthuizen; D, Nick Helme in iNaturalist

Fig. 4 in A revision of Stemodiopsis Engl. (Linderniaceae) in South Africa

Fig. 4. Known distribution of Stemodiopsis buchananii var. buchananii (*) and S. kamundii (°) in South Africa, based on herbarium specimens.

Fig. 3 in A revision of Stemodiopsis Engl. (Linderniaceae) in South Africa

Fig. 3. Indumentum on fruits of: A, Stemodiopsis buchananii var. buchananii, voucher Cron et al. 252 (J); B, S. buchananii var. pubescens, voucher Grosvenor 327 (SRGH); C, S. rivae, voucher Pawek 12,752 (MO); D, E, S. kamundii, voucher Balkwill & Balkwill 8262 (J); F, G, S. kamundii, voucher van der Schijff 3571 (PRE). Scale bars = 1 mm for A‒D & G and 0.2 mm for D & E.