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A, live animals under cover slip. B, C, stylets from two whole-mounted specimens. D, afferent system with bursal canal, bursa and bursal appendage in a whole-mounted specimen. Abbreviations: b, bursa; ba, bursal appendage; bc, bursal canal; e, eye; p, proboscis; ph, pharynx; st, stylet; t, testis. Scale bars: A = 200 µm; B–D = 50 µm.
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Trigonostomum vanmecheleni sp. nov. A, Internal organisation as seen on a live animal, dorsal view. ac: anterior cilia; ar: adenal rhabdites; ba: bursal appendage; bu: female bursa; e: eye; gp: gonopore; ov: ovary; p: proboscis; ph: pharynx; pv: prostate vesicle; st: stylet; t: testis; vit: vitellarium; vs: seminal vesicle. B, stylet and its parts: B1, entire stylet as seen on the holotype; B2, stylet proper; B3, the broad plate; B4, the narrow plate. C, bursal appendage from the holotype (1 and 2 at different focal planes). D, stylet as seen on a slightly squeezed live animal. E, bursal appendage as seen on a slightly-squeezed live animal.
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(D) Bursal appendage. (E) Stylet.
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(A) Reconstruction of the atrial organs from the left side; (B) general organization (from a live specimen); (C) stylet (from the holotype); (D) pharynx (reconstruction on sagittal sections).
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Trigonostomum vanmecheleni sp. nov. A, Internal organisation as seen on a live animal, dorsal view. ac: anterior cilia; ar: adenal rhabdites; ba: bursal appendage; bu: female bursa; e: eye; gp: gonopore; ov: ovary; p: proboscis; ph: pharynx; pv: prostate vesicle; st: stylet; t: testis; vit: vitellarium; vs: seminal vesicle. B, stylet and its parts: B1, entire stylet as seen on the holotype; B2, stylet proper; B3, the broad plate; B4, the narrow plate. C, bursal appendage from the holotype (1 and 2 at different focal planes). D, stylet as seen on a slightly squeezed live animal. E, bursal appendage as seen on a slightly-squeezed live animal.
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(A) General organization (from a live specimen); (B) habitus of a live animal; (C) stylet (from the holotype); (D) reconstruction of the atrial organs from the right side.
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(A) Habitus of a live animal; (B) general organization (from a live specimen); (C) stylet (from the holotype); (D) horizontal reconstruction of the atrial organs.
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Copulatory organ proper
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(A) Habitus of a live animal; (B) general organization (from a live specimen); (C) stylet (from the holotype); (D) reconstruction of the atrial organs and the pharynx from the right side.
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