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FIGURE 4. Pseudobiceros caribbensis n in Five new species of cotylean flatworms (Platyhelminthes: Polycladida) from the wider Caribbean
FIGURE 4. Pseudobiceros caribbensis n. sp. A. Sagittal histological sections of one male copulatory system showing seminal and prostatic vesicles, stylet, and male atrium. B. Sagittal histological section of the female copulatory system showing cement glands, vagina, and female pore. C. Diagrammatic representation of one male reproductive system. All scale bars 250 µm. cg, cement glands; fp, female pore; ma, male atrium; s, stylet; pv, prostatic vesicle; sv, seminal vesicle; v, vagina.
FIGURE 2. Pseudobiceros pardalis n. comb. A in Five new species of cotylean flatworms (Platyhelminthes: Polycladida) from the wider Caribbean
FIGURE 2. Pseudobiceros pardalis n. comb. A. Sagittal section of one male copulatory system, showing seminal and prostatic vesicles. B. Sagittal section of one male copulatory system, showing prostatic vesicle, stylet, and male atrium. C. Sagittal section of female copulatory system, showing female pore, atrium, cement glands, cement pouch and vagina. D. Sagittal section through the sucker. E. Diagrammatic representation of one male copulatory apparatus. All scale bars 250 µm. cg, cement glands; fa, female atrium; fp, female pore; ma, male atrium; s, stylet; pv, prostatic vesicle; sv, seminal vesicle; v, vagina; asterisk, cement pouch.
FIGURE 3. Leptoplana tremellaris. a in Updated inventory and distribution of free-living flatworms from Tunisian waters
FIGURE 3. Leptoplana tremellaris. a Dorsal view of anterior region showing the arrangement of eyes. Note the presence of two clusters of tentacular eyes te located posteriorly to two clusters of cerebral eyes ce. b Ventral view of anterior region showing confluent uteri ut filled with eggs. Tentacular eyes te, cerebral eyes ce. c Ventral view of posterior region showing male gonopore mg, genital pit gp and female gonopore fg. d Sagittal section of body wall. Note the presence of rhabdites rh among epithelial cells supported by basal lamina bl. The musculature is developed and organized in different layers, circular layer cl, oblique layer ol and longitudinal layer ll. e Section through uteri and ovaries showing uterine eggs ue and ovarian egg oe. f Section through male gonopore mg. The male atrium is provided with diverticulum d. Prostatic vesicle pv. g Section through seminal vesicle sv and ventral diverticulum of the prostatic vesicle dpv. Note the presence of mesenchyme separating seminal vesicle and prostatic vesicle. h Section through the entrance of vas deferens vd into the seminal vesicle. Note the presence of mesenchyme separating seminal vesicle sv and prostatic vesicle pv. i Section through female genital apparatus, the vagina is formed by vagina externa ve, vagina media vm and vagina interna vi. Female gonopore fg. Scale bars: 3a–b: 0.5 mm; 3c: 100 microns; 3d: 10 microns; 3e–i: 100 microns.
FIGURE 4. Marine triclads. a in Updated inventory and distribution of free-living flatworms from Tunisian waters
FIGURE 4. Marine triclads. a Cleared whole mount of Procerodes dohrni. Note the presence of horn-shaped auricles in the anterior margin of body arrowheads. The pharynx ph is located in the second third of body. The testes (arrows) are distributed between intestinal ramifications ir. Penis papilla pp. b Cleared whole mount of Procerodes lobatus. Note the presence of flat auricles appearing as anterior marginal expansions (folds) arrowheads. The pharynx ph is located in the second half of body. Testes (arrows) are superimposed with intestine ramifications ir; penis papillae pp. c Cleared whole mount of Cerbussowia cerruti. The pharynx ph is located in the last third of body. A pair of oval shaped testes t and piriform ovaries ov are located anteriorly to the pharynx; vas deferens vd; intestine ramifications ir. d Procerodes lobatus. Dorsal view e Cercyra hastata. Ventral view showing everted pharynx ph and pigmented anterior end pae. f Cercyra hastata. Dorsal view. g Cleared whole mount of male specimen of Sabussowia dioica. The pharynx ph is located in the posterior part of the body. Testis (arrows) are distributed in all parts of the body. h Cleared whole mount of female specimen of Sabussowia dioica showing spermatophore (arrowhead) being impregnated to the marginal tissue of the body. Ovaries ov are located behind cerebral area. i Cleared whole mount of female specimen of Sabussowia dioica showing cocoon cc in uterus. Scale bars: 4a–c: 0.5mm; 4d: 0.5mm; 4e–f: 1mm; 4g–i: 1 mm.
FIGURE 2 in Updated inventory and distribution of free-living flatworms from Tunisian waters
FIGURE 2. Polyclads from Tunisian waters. Dorsal view in all panels, anterior to the left. a Leptoplana mediterranea. b Leptoplana tremellaris. c Echinoplana celerrima. d Theama mediterranea; the depicted specimen was collected in Calvi, Corse. e Imogine mediterranea. f Discocelis tigrina. g Cestoplana rubrocinta. h Comoplana agilis. i Prosthiostomum siphunculus. j Prostheceraeus moseleyi. k Thysanozoon brocchii. l Pseudoceros maximus. m Yungia aurantiaca n hatching in Leptoplana tremellaris. o hatched four-eyed juvenile of Leptoplana tremellaris. Scale bars: 2a–c, 2e–m: 5 mm; 2d, 2n–o: 100 microns.
Figure 10. Amphibioplana onnisi. A, holotype RMNH.VER. 19956.a in Amphibioplanidae: a new branch and family on the phylogenetic tree of the triclad flatworms (Platyhelminthes: Tricladida), represented by a species from Sardinian caves with a remarkable lifestyle
Figure 10. Amphibioplana onnisi. A, holotype RMNH.VER. 19956.a, photomicrograph of a horizontal section of the left ovary (lo) with tuba (tu) and origin of the left oviduct (lod), testes (t) and vitellaria (vi); B, RMNH.VER. 19956.d, photomicrograph of a sagittal section at the level of the left ovary (lo), with testes (t) and vitellaria (vi); C, CGAS Pla 19.2, photomicrograph of a sagittal section at the level of the left ovary (lo), showing in detail the dorsal (de) and ventral epidermis (ve) with the subepidermal musculature, some vitellaria (vi), and the ventral nerve cord (vnc).
Figure 14 in Amphibioplanidae: a new branch and family on the phylogenetic tree of the triclad flatworms (Platyhelminthes: Tricladida), represented by a species from Sardinian caves with a remarkable lifestyle
Figure 14. Amphibioplana onnisi. Photomicrographs of the copulatory apparatus; sagittal sections. A, holotype RMNH. VER. 19956.a, showing penis bulb (pb), penis papilla (pp), genital atrium (ga), and the gonopore (go) opening into the cupshaped chamber (csc); anterior to the right; B, CGAS Pla 19. 2, showing copulatory bursa (cb), penis bulb, penis papilla and genital atrium; anterior to the right; C, RMNH.VER. 19958.d, showing copulatory bursa with a voluminous mass of sperm (s) in its lumen, penis bulb, penis papilla and genital atrium; anterior to the left; D, CGAS Pla 19.1b, showing copulatory bursa with sperm in its lumen, penis bulb, penis papilla and genital atrium; anterior to the left; E, CGAS Pla 24.5, sagittal section showing the proximal tract of the bursal canal (bc) with its diaphragm-like protrusion (bcd) into the copulatory bursa; anterior to the left; F, CGAS Pla 22. 6, transverse section showing the penis papilla with the two vasa deferentia (vd) running parallel before their fusion to form the ejaculatory duct.
Figure 3. Amphibioplana onnisi. A in Amphibioplanidae: a new branch and family on the phylogenetic tree of the triclad flatworms (Platyhelminthes: Tricladida), represented by a species from Sardinian caves with a remarkable lifestyle
Figure 3. Amphibioplana onnisi. A single, curled up specimen from under a stone in the Grutta 'e Pauli Cave. Scale bar not available.
Figure 9. Amphibioplana onnisi. A, RMNH.VER. 19956.d in Amphibioplanidae: a new branch and family on the phylogenetic tree of the triclad flatworms (Platyhelminthes: Tricladida), represented by a species from Sardinian caves with a remarkable lifestyle
Figure 9. Amphibioplana onnisi. A, RMNH.VER. 19956.d, photomicrograph of a sagittal section of the prepharyngeal region, showing the brain (b), the anterior intestinal branch (aib), the most anterior testes (t) and vitellaria (vi) and the left ovary (lo); B, photograph of a preserved specimen from the Grutta 'e Pauli Cave in ventral view, showing the vitellaria (vi), testes (t), pharynx (ph), and copulatory apparatus (ca).
Figure 8 in Amphibioplanidae: a new branch and family on the phylogenetic tree of the triclad flatworms (Platyhelminthes: Tricladida), represented by a species from Sardinian caves with a remarkable lifestyle
Figure 8. Amphibioplana onnisi. Photomicrographs of the pharynx, sagittal sections. A, CGAS Pla 19.2, oesophageal protrusion (oep) and convoluted tract of the pharynx (cph); anterior to the right; B, RMNH.VER. 19956.c, oesophageal protrusion (oep), also showing xanthophil (xg) and erythrophil (eg) secretions in the pharynx; anterior to the left.
Figure 5 in Amphibioplanidae: a new branch and family on the phylogenetic tree of the triclad flatworms (Platyhelminthes: Tricladida), represented by a species from Sardinian caves with a remarkable lifestyle
Figure 5. Amphibioplana onnisi. Habitus of live specimens from the Grutta 'e Pauli Cave. A, specimen with constriction just behind copulatory apparatus; B, C, anterior portion of specimen with regenerating blastema (rb) at the margin of the prepharyngeal part of the body; D, specimen with caudal tip located just behind the pharynx, suggesting a recent postpharyngeal fission; E, specimen with caudal tip located just behind the copulatory apparatus (ca), suggesting a recent caudal fission; F, specimen with a regenerating blastema behind the copulatory apparatus. Scale bars not available.
Figure 4 in Amphibioplanidae: a new branch and family on the phylogenetic tree of the triclad flatworms (Platyhelminthes: Tricladida), represented by a species from Sardinian caves with a remarkable lifestyle
Figure 4. Amphibioplana onnisi. Habitat in freshwater environments. A, entrance of Grutta 'e Pauli Cave; B, collection site in Grutta 'e Pauli Cave; C, collection site in San Pietro Cave; D, collection site in Istirzili Cave. Details on precise locations of the sampling sites in the caves are omitted for reasons of species protection.
Figure 2 in Amphibioplanidae: a new branch and family on the phylogenetic tree of the triclad flatworms (Platyhelminthes: Tricladida), represented by a species from Sardinian caves with a remarkable lifestyle
Figure 2. Maximum-likelihood tree inferred from the concatenated dataset, including the filtered 18S and 28S alignments (Table 2) of representatives of the various suborders of the Tricladida. Values at nodes correspond to UFB/SH-aLRT/PP; –: PP values below 0.5. Scale bar: number of substitutions per nucleotide position.
Figure 1 in Amphibioplanidae: a new branch and family on the phylogenetic tree of the triclad flatworms (Platyhelminthes: Tricladida), represented by a species from Sardinian caves with a remarkable lifestyle
Figure 1. Geographic distribution of Amphibioplana onnisi in the Mediterranean region. Rectangular inset corresponds with area enlarged to right-hand side, showing the island of Sardinia. Filled black circles indicate location of caves from which populations were sampled; green areas indicate the karst regions.
Figure 12. Amphibioplana onnisi. CGAS Pla 24.5 in Amphibioplanidae: a new branch and family on the phylogenetic tree of the triclad flatworms (Platyhelminthes: Tricladida), represented by a species from Sardinian caves with a remarkable lifestyle
Figure 12. Amphibioplana onnisi. CGAS Pla 24.5, sagittal reconstruction of the copulatory apparatus; anterior to the left.
Figure 15 in Amphibioplanidae: a new branch and family on the phylogenetic tree of the triclad flatworms (Platyhelminthes: Tricladida), represented by a species from Sardinian caves with a remarkable lifestyle
Figure 15. Amphibioplana onnisi. Photomicrographs of the copulatory apparatus. A, CGAS Pla 19.1b, sagittal section showing copulatory bursa (cb), bursal canal (bc) with its diverticulum (di), and common oviduct (cod); anterior to the left; B, RMNH.VER. 19957.a, sagittal section showing copulatory bursa (cb), penis papilla (pp), genital atrium (ga), cup-shaped chamber (csc), common oviduct (cod), and right oviduct (rod); anterior to the left.
FIG. 4 in A new, sibling species of cave flatworm from Switzerland (Platyhelminthes, Tricladida, Dendrocoelidae)
FIG. 4 Dendrocoelum hercynicum. Syntype (Museum für Naturkunde 10436b). (A) Sagittal reconstruction of the copulatory apparatus. (B) Sagittal reconstruction of the copulatory bursa and bursal canal; exact opening of common oviduct into the atrium could not be observed.
FIG. 5 in A new, sibling species of cave flatworm from Switzerland (Platyhelminthes, Tricladida, Dendrocoelidae)
FIG. 5 Dendrocoelum stenophallus (MNHN AJ 275-276). Microphotograph of flagellum on the penis papilla.
FIGURE 1 in DNA barcoding reveals new records of invasive terrestrial flatworms (Platyhelminthes, Tricladida, Geoplanidae) in the Macaronesian region
FIGURE 1. Maximum-likelihood tree of invasive terrestrial flatworms, based on COI sequences. Bootstrap values are presented only for main clades. Countries are indicated after GenBank accession number. Red: specimens sequenced in this study. A. Caenoplana coerulea tree. B. Endeavouria septemlineata tree. C. Obama nungara tree.
FIGURE 4 in The invasive land flatworm Obama nungara in La Réunion, a French island in the Indian Ocean, the first report of the species for Africa
FIGURE 4. Climatic suitability of Obama nungara in La Réunion. Names of communes and their limits (white lines) are indicated. The three localities where the specimens were found (Petite France, Plaine des Grègues and Gîte de la Bergerie) are indicated.
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Allen Brain Atlas
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OpenNeuro
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