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FIGURE 5 in Biodiversity of intertidal marine flatworms (Polycladida, Platyhelminthes) in southeastern Australia

FIGURE 5. Neostylochus ancorus sp. nov. A. Dorsal view of the fixed specimen, treated with a clearing agent. B. Details of the copulatory system. C. Dorsal view of live specimen. D. Arrangement of the eyes. E. Sagittal reconstruction of the reproductive system. F–I. Histological sections of the reproductive system.

FIGURE 20. Diposthus popeae Hyman, 1959. A in Biodiversity of intertidal marine flatworms (Polycladida, Platyhelminthes) in southeastern Australia

FIGURE 20. Diposthus popeae Hyman, 1959. A. Dorsal view of live specimen. B. Dorsal view of a fixed specimen, treated with a clearing agent. C. Details of the reproductive systems. D. Arrangement of the eyes. E. Sagittal reconstruction of the reproductive system. F. Histological sections of the reproductive system.

FIGURE 4. Callioplana marginata Stimpson, 1857. A in Biodiversity of intertidal marine flatworms (Polycladida, Platyhelminthes) in southeastern Australia

FIGURE 4. Callioplana marginata Stimpson, 1857. A. Changes in dorsal colouration pattern with different lighting (top row); dorsal view of live specimens with differences in colouration pattern (bottom row). B. Sagittal reconstruction of the reproductive system. C. Histological sections of the reproductive system.

FIGURE 12. Echinoplana celerrima Haswell, 1907. A in Biodiversity of intertidal marine flatworms (Polycladida, Platyhelminthes) in southeastern Australia

FIGURE 12. Echinoplana celerrima Haswell, 1907. A. Dorsal view of live specimen. B. Dorsal view of a fixed specimen, treated with a clearing agent. C. Details of the pharynx and reproductive systems. D. Arrangement of the eyes. E. Sagittal reconstruction of the reproductive system. F. Histological sections of the reproductive system.

FIGURE 7. Leptostylochus victoriensis Beveridge, 2017. A in Biodiversity of intertidal marine flatworms (Polycladida, Platyhelminthes) in southeastern Australia

FIGURE 7. Leptostylochus victoriensis Beveridge, 2017. A. Dorsal view of live specimens (top row), dorsal view of a fixed specimen (bottom row, left and centre) and details of the pharynx (bottom row, right). B. Sagittal reconstruction of the reproductive system. C. Histological sections of the reproductive system.

FIGURE 6 in Biodiversity of intertidal marine flatworms (Polycladida, Platyhelminthes) in southeastern Australia

FIGURE 6. Eulatocestus australis sp. nov. A. Arrangement of the eyes. B. Dorsal view of the posterior half of the fixed specimen, treated with a clearing agent. C. Sagittal reconstruction of the reproductive system. D–G. Histological sections of the reproductive system.

FIGURE 8. Idioplana australiensis Woodworth 1898. A in Biodiversity of intertidal marine flatworms (Polycladida, Platyhelminthes) in southeastern Australia

FIGURE 8. Idioplana australiensis Woodworth 1898. A. Dorsal view of live specimen (left), detail of the pharynx (centre) and arrangement of the eyes (right). B. Detail of marginal eyes (left and right) and a tentacle with tentacular eyes (centre). C. Sagittal reconstruction of the reproductive system. D. Histological sections of the reproductive system.

Figure 3 in A molecular analysis of the phylogenetic position of the suborder Cavernicola within the Tricladida (Platyhelminthes), with the description of a new species of stygobiont flatworm from Benin

Figure 3. Novomitchellia bursaelongata Harrath, Sluys & Riutort, sp. nov. A, holotype. Microphotograph of sagittal section of the pharynx; musculature composed of subepithelial layer of circular fibres, followed by a layer of longitudinal fibres (arrowhead), and outer subepithelial layer of circular muscle (arrow). B, paratype V.Pl. 7225.3. Sagittal section showing the numerous, dorsal testes (arrowheads). C, holotype. Sagittal section showing ventral position of ovary and oviduct, above the ventral nerve cord. D, photomicrograph of the copulatory apparatus of the holotype in sagittal section; large arrow indicates direction of head. E, sagittal section of the copulatory apparatus of the holotype showing connection between common oviduct and bursal canal; large arrow indicates direction of head. Abbreviations: A, atrium; BC, bursal canal; CB, copulatory bursa; CM, circular muscle; COD, common oviduct; DS, dorsal side; ED, ejaculatory duct; G, gonopore; L, lumen; OD, oviduct; OV, oviduct; PP, penis papilla; SV, seminal vesicle; VD, vas deferens; VNC, ventral nerve cord; VS, ventral side. Scale bars = 200 µm.

Figure 1. Bayesian tree inferred from the 18S in A molecular analysis of the phylogenetic position of the suborder Cavernicola within the Tricladida (Platyhelminthes), with the description of a new species of stygobiont flatworm from Benin

Figure 1. Bayesian tree inferred from the 18S rDNA sequences showing the relationship of the new Novomitchellia species to other Tricladida species included in this analysis. Maximum likelihood (ML) yielded the same topology. Asterisks at nodes indicate posterior probabilities = 1/bootstrap values> 75% obtained respectively in the ML and Bayesian inference analyses. Scale bar: number of substitutions per nucleotide position.

Figure 4 in A molecular analysis of the phylogenetic position of the suborder Cavernicola within the Tricladida (Platyhelminthes), with the description of a new species of stygobiont flatworm from Benin

Figure 4. Novomitchellia bursaelongata Harrath, Sluys & Riutort, sp. nov. Sagittal reconstruction of the copulatory apparatus of the holotype. Abbreviations: A, atrium; BC, bursal canal; CB, copulatory bursa; COD, common oviduct; G, gonopore; GL, glands; M, mouth; OD, oviduct; PB, penis bulb; PH, pharynx; PP, penis papilla; VD, vas deferens. Scale bar = 150 µm.

Figure 2 in A molecular analysis of the phylogenetic position of the suborder Cavernicola within the Tricladida (Platyhelminthes), with the description of a new species of stygobiont flatworm from Benin

Figure 2. Novomitchellia bursaelongata Harrath, Sluys & Riutort, sp. nov. Holotype. A, photograph of preserved specimen in dorsal view; some protuberances are seen on the head (arrowheads); arrow indicates the tail (T). B, photograph of preserved specimen in ventral view; arrow indicates the pharynx (PH). Scale bars not available.

FIGURE 26 in Three new species of land flatworms and comments on a complex of species in the genus Geoplana Stimpson (Platyhelminthes: Continenticola)

FIGURE 26. Geoplana baptistae sp. nov.: photograph of a live specimen (paratype MZU PL.00124) in dorsal view. Scale bar: 30 mm.

FIGURES 31–32 in Three new species of land flatworms and comments on a complex of species in the genus Geoplana Stimpson (Platyhelminthes: Continenticola)

FIGURES 31–32. Geoplana baptistae sp. nov.: (31) diagrammatic sagittal composite reconstruction of the copulatory apparatus of the holotype; (32) diagrammatic horizontal composite reconstruction of the copulatory apparatus of paratype MZU PL.00125. (cmc) common muscle coat, (cov) common glandular ovovitelline duct, (ej) ejaculatory duct, (fa) female atrium, (go) gonopore, (ma) male atrium, (ov) ovovitelline ducts, (pp) penis papilla, (pv) prostatic vesicle, (sc) secretory cells, (sv) spermiducal vesicle, (va) vagina. Scale bar: 1 mm.

FIGURES 16–17 in Three new species of land flatworms and comments on a complex of species in the genus Geoplana Stimpson (Platyhelminthes: Continenticola)

FIGURES 16–17. Geoplana carbayoi sp. nov.: (16) colour pattern and (17) detail of eyes pattern of a preserved specimen (paratype MZU PL.00114) in dorsal view. (e) eyes. Scale bar: 5 mm.

FIGURES 18–19 in Three new species of land flatworms and comments on a complex of species in the genus Geoplana Stimpson (Platyhelminthes: Continenticola)

FIGURES 18–19. Geoplana carbayoi sp. nov.: (18) pre-pharyngeal region of the holotype in transverse section; (19) pharynx of the holotype in sagittal section. (de) dorsal epidermis, (di) dorsal insertion, (es) esophagus, (gm) glandular margin, (i) intestine, (im) internal musculature, (lu) pharyngeal lumen, (m) mouth, (mm) mesenchymatic muscles, (om) outer musculature, (n) nerve plate, (pp) pharyngeal pouch, (sc) secretory cells, (t) testes, (v) vitellaria, (ve) ventral epidermis, (vi) ventral insertion. Scale bar: 1 mm.

FIGURES 11–15 in Three new species of land flatworms and comments on a complex of species in the genus Geoplana Stimpson (Platyhelminthes: Continenticola)

FIGURES 11–15. Geoplana ficki sp. nov.: (11) copulatory apparatus of paratype MZU PL.00103 from São Francisco de Paula in horizontal section; (12) copulatory apparatus of paratype MZU PL.00111 from São Francisco de Paula in horizontal section; (13) detail of paired portions of the prostatic vesicle of paratype MZU PL.00103 from São Francisco de Paula in horizontal section; (14) opening of spermiducal duct into one of the paired portions of prostatic vesicle in sagittal section (holotype); (15) encysted stage of a parasite (arrow), possibly metacercariae, in paratype MZU PL.00106. (de) dorsal epidermis, (ej) ejaculatory duct, (fa) female atrium, (go) gonopore, (ma) male atrium, (ov) oviduct, (pp) penis papilla, (pv) prostatic vesicle, (sv) spermiducal vesicle, (va) vagina. Scale bar: 0.5 mm.

FIGURES 3–4 in Three new species of land flatworms and comments on a complex of species in the genus Geoplana Stimpson (Platyhelminthes: Continenticola)

FIGURES 3–4. Geoplana ficki sp. nov.: (3) detail of colour pattern of preserved specimen (paratype MZU PL.00111) in dorsal view; (4) detail of eyes pattern in the anterior body half of a preserved specimen (paratype MZU PL.00110) in dorsal view. (e) eyes, (pg) pigmentation. Scale bar: 5 mm.

FIGURES 9–10 in Three new species of land flatworms and comments on a complex of species in the genus Geoplana Stimpson (Platyhelminthes: Continenticola)

FIGURES 9–10. Geoplana ficki sp. nov.: copulatory apparatus in sagittal sections (holotype). (ej) ejaculatory duct, (fa) female atrium, (go) gonopore, (ma) male atrium, (ov) ovovitelline ducts, (pp) penis papilla, (pv) prostatic vesicle, (sc) secretory cells, (sg) shell glands, (va) vagina. Scale bar: 1 mm.

FIGURES 22–25 in Three new species of land flatworms and comments on a complex of species in the genus Geoplana Stimpson (Platyhelminthes: Continenticola)

FIGURES 22–25. Geoplana carbayoi sp. nov.: (22) detail of paired portions of the prostatic vesicle of paratype MZU PL.00112 in horizontal section; (23) copulatory apparatus of paratype MZU PL.00112 in horizontal section; (24) copulatory apparatus of paratype MZU PL.00113 in horizontal section; (25) copulatory apparatus of the holotype in sagittal section. (cmc) common muscle coat, (cov) common glandular ovovitelline duct, (ej) ejaculatory duct, (fa) female atrium, (go) gonopore, (ma) male atrium, (pp) penis papilla, (pv) prostatic vesicle, (sc) secretory cells, (sg) shell glands, (sv) spermiducal vesicle, (va) vagina. Scale bar: 1 mm.

FIGURES 20–21 in Three new species of land flatworms and comments on a complex of species in the genus Geoplana Stimpson (Platyhelminthes: Continenticola)

FIGURES 20–21. Geoplana carbayoi sp. nov.: (20) diagrammatic sagittal composite reconstruction of the copulatory apparatus of the holotype; (21) diagrammatic horizontal composite reconstruction of the copulatory apparatus of paratype MZU PL.00112. (cmc) common muscle coat, (cov) common glandular ovovitelline duct, (ej) ejaculatory duct, (fa) female atrium, (go) gonopore, (ma) male atrium, (ov) ovovitelline ducts, (pp) penis papilla, (pv) prostatic vesicle, (sv) spermiducal vesicle. Scale bar: 1 mm.