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1,925 results for “Platyhelminthes”
Fig. 9 Obama ladislavii, specimen NHM 2737-B2-a in Focus on the details: morphological evidence supports new cryptic land flatworm (Platyhelminthes) species revealed with molecules
Fig. 9 Obama ladislavii, specimen NHM 2737-B2-a. Diagrammatic reconstruction of copulatory apparatus from sagittal sections
Figs. 7–8 Obama ladislavii, specimens ZMH V5270-A in Focus on the details: morphological evidence supports new cryptic land flatworm (Platyhelminthes) species revealed with molecules
Figs. 7–8 Obama ladislavii, specimens ZMH V5270-A (7) and NHM 2737-B2-b (8). (7) Diagrammatic representation of the pharynx from sagittal sections; (8) diagrammatic reconstruction of pharynx and copulatory apparatus from sagittal sections; not scaled
Fig. 3 in Focus on the details: morphological evidence supports new cryptic land flatworm (Platyhelminthes) species revealed with molecules
Fig. 3 BPP results represented on the species tree inferred with *BEAST using five datasets, the nuclear 18S, 28S, ITS-1, EF and the mitochondrial Cox1 genes. Numbers at nodes indicate the posterior probability of that split corresponding to a speciation event
Figure 3 in The genera Parotoplana Meixner, 1938 and Parotoplanella Ax, 1956 (Platyhelminthes: Proseriata) in southern Spain
Figure 3. Parotoplana cucullata sp. n. A, sclerotized apparatus (holotype). Scale520 Mm. Parotoplanella heterorhabditica. B, sclerotized apparatus. Scale510 Mm. Parotoplana fretigaditani sp. n. C, sclerotized apparatus (holotype). Scale520 Mm. D, male genital organs (holotype). Scale560 Mm. E, detail of the spade shaped apex (holotype). Scale53 Mm.
Figure 1 in The genera Parotoplana Meixner, 1938 and Parotoplanella Ax, 1956 (Platyhelminthes: Proseriata) in southern Spain
Figure 1. Parotoplana cucullata sp. n. A, general organisation of a live animal. Scale5200 Mm. B, reconstruction of the genital organs from sagittal sections. Scale540 Mm. C, sclerotized apparatus. Scale530 Mm. Parotoplana fretigaditani sp. n. D, sclerotized apparatus. Scale530 Mm.
FIGURE 5 in Freshwater planarians (Platyhelminthes, Tricladida) from the Palearctic section of the African continent: new records, with the description of a new species
FIGURE 5. (a) Microphotograph of metaphasic plate of Dugesia sicula from Algeria (Oum El Bouaghi), (b) Chromosome complement of D. sicula arranged in pairs, (c) Idiogram of the chromosomes.
FIGURE 3 in Freshwater planarians (Platyhelminthes, Tricladida) from the Palearctic section of the African continent: new records, with the description of a new species
FIGURE 3. Dugesia tubqalis (Holotype, V. Pl. 6905.1): (a) microphotograph of the copulatory apparatus, (b) sagittal reconstruction of the copulatory apparatus.
FIGURE 3 in Biodiversity of intertidal marine flatworms (Polycladida, Platyhelminthes) in southeastern Australia
FIGURE 3. Bayesian inference (BI) phylogenetic tree from sequences of five genes (18S, 28S, 16S, COI, Cytb) (concatenated length 3812 bp). Node support (PP) is shown for values greater than 0.80. Species from this study are highlighted in blue.
FIGURE 11 in Biodiversity of intertidal marine flatworms (Polycladida, Platyhelminthes) in southeastern Australia
FIGURE 11. Parabolia megae gen. et sp. nov. A. Dorsal view of live specimen. B. Dorsal view of a fixed specimen, treated with a clearing agent. C, D. Details of the pharynx and reproductive systems. E, F. Arrangement ofthe eyes. G. Sagittal reconstruction of the reproductive system. H–K. Histological sections of the reproductive system.
FIGURE 7 in Taxonomic revision of four species of the Neotropical land planarian genera Cratera and Geoplana (Platyhelminthes, Tricladida) with a description of two new species and an emendation of Cratera
FIGURE 7. Cratera taxiarcha (Marcus, 1951). (A): dorsal view of specimen F3518. (B): photomicrograph of a sagittal section of the pharynx of specimen F3518. (C): photomicrograph of a sagittal section of the tip of papilla of the holotype, showing the distal cavity of the ejaculatory duct. (D): photomicrograph of a sagittal section of the tip of papilla of specimen F3518, showing the distal cavity of the ejaculatory duct.
FIGURE 6 in Taxonomic revision of four species of the Neotropical land planarian genera Cratera and Geoplana (Platyhelminthes, Tricladida) with a description of two new species and an emendation of Cratera
FIGURE 6. Cratera joia (Froehlich, 1956). (A): photomicrograph of a sagittal section of the copulatory apparatus of syntype A. (B): photomicrograph of a sagittal section of the copulatory apparatus of specimen F7239.
FIGURE 8 in Taxonomic revision of four species of the Neotropical land planarian genera Cratera and Geoplana (Platyhelminthes, Tricladida) with a description of two new species and an emendation of Cratera
FIGURE 8. Cratera taxiarcha (Marcus, 1951). Photomicrograph of a sagittal section of the copulatory apparatus of the holotype.
FIGURE 5 in Taxonomic revision of four species of the Neotropical land planarian genera Cratera and Geoplana (Platyhelminthes, Tricladida) with a description of two new species and an emendation of Cratera
FIGURE 5. Cratera joia (Froehlich, 1956). (A): original drawings by E. M. Froehlich, representing the coloration of type specimens and eye distribution. Leftmost drawing is a lateral view; two rightmost drawings are dorsal views of midbody and cephalic extremity. (B): photomicrograph of a transverse section of the anterior region of specimen F7239 showing eye and sensory pit; note cilia covering all epithelium. (C): photomicrograph of a sagittal section of the pharynx of syntype A or B. (D): photomicrograph of a sagittal section showing the extrabulbar position of the prostatic vesicle in specimen F7239. (E): photomicrograph of a sagittal section of the tip of penis papilla of syntype A, showing the distal cavity of the ejaculatory duct. (F): photomicrograph of a sagittal section of the penis papilla of specimen F7239, showing the cyanophil glands and modified epithelium on the dorsal region of the penis papilla (arrowhead).
FIGURE 2 in Taxonomic revision of four species of the Neotropical land planarian genera Cratera and Geoplana (Platyhelminthes, Tricladida) with a description of two new species and an emendation of Cratera
FIGURE 2. Cratera crioula (Froehlich, 1955). (A): dorsal view of live specimen F3715. (B): dorsal view of live specimen F3712. (C): dorsal view of live specimen F3709. (D): ventral view of live specimen F3532. (E): anterior region of specimen F3709 after being cleared in clove oil; note eyes scattered onto dorsum. (F): photomicrograph of a sagittal section of the tip of penis papilla of holotype, showing the small dilation of the ejaculatory duct.
FIGURE 46 in Two new land planarian species (Platyhelminthes: Tricladida) from the Cerrado biome in southwestern Brazil
FIGURE 46. Bayesian inference tree topology (GTR+G+I model) of cytochrome c oxidase subunit I gene of species of Pasipha. The Bayesian phylogeny was constructed under the HKY+I+G substitution model. Numbers on nodes indicate posterior probabilities of the Bayesian method. Scale bar represents substitutions per nucleotide site. GenBank accession numbers are in parentheses.
FIGURE 5 in New species of Temnocephala (Platyhelminthes, Temnocephalidae) ectosymbiont on decapod crustaceans Aegla jarai (Aeglidae) from Brazil and Samastacus spinifrons (Parastacidae) from Chile
FIGURE 5. Photomicrographs of cirri of Temnocephala catarinensis sp. nov. from Aegla jarai, seen with Nomarski's DIC microscopy. A. Entire cirrus (lateral view), showing the evident curvature, scale bar: 25 μm. B. Entire cirrus (dorsal or ventral view), showing that the curvature is less evident when the cirrus is in this position, the proximal limit of the introvert (arrow) and the shaft rim (head arrow), typical of adult worms, scale bar: 20μm. C–K. Introvert seen in different focusing planes, showing the proximal limit of the introvert (arrow), scale bars: 10 μm.
Figure 3. Bayesian inference tree inferred from Dataset5 in First molecular phylogeny of the freshwater planarian genus Girardia (Platyhelminthes: Tricladida) unveils hidden taxonomic diversity and initiates resolution of its historical biogeography
Figure 3. Bayesian inference tree inferred from Dataset5 (concatenated no outgroup). Different groups indicated by letters and colours. A, schematic representation of the tree with collapsed clades (triangles) and singletons (rectangles) showing species identifications, when available, and countries of origin of the various terminals. The relationships between groups
Figure 41 in The discovery of new Chilean taxa revolutionizes the systematics of Geoplaninae Neotropical land planarians (Platyhelminthes: Tricladida)
Figure 41. Sarcoplana musculosa sp. nov. Photomicrographs of histological sections. A, transverse section at 0.88 µm from the anterior tip of the body showing one sensory depression (arrow). B, C, transverse sections of the pre-pharyngeal region. D, E, horizontal sections of the dorsal (B) and ventral (C) portions behind the cephalic region. F, transverse section at 1.9 mm from anterior tip of the body.
Figure 34 in The discovery of new Chilean taxa revolutionizes the systematics of Geoplaninae Neotropical land planarians (Platyhelminthes: Tricladida)
Figure 34. Pichidamas gnythos sp. nov. Holotype. Photomicrographs of transverse sections of the cephalic region of the body, at 1000 (A), 300 (B), 240 (C), 125 µm (D) from the anterior extremity of the body, respectively.
Figure 8 in The discovery of new Chilean taxa revolutionizes the systematics of Geoplaninae Neotropical land planarians (Platyhelminthes: Tricladida)
Figure 8. Adinoplana nahuta sp. nov. Living holotype in dorsal (A) and ventral views (D). Scale not available. The body is approximately 65 mm long.
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