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1,925 results for “Platyhelminthes”
FIGURE 12 in Five new species of cotylean flatworms (Platyhelminthes: Polycladida: Cotylea) from Oaxaca, southern Mexican Pacific
FIGURE 12. Pseudoceros bicuti sp. nov. A–B (holotype UMAR PLAT-034). Diagrammatic representation of the complete specimen; B. Diagrammatic representation of the male and female reproductive systems, in whole mount. Structures: ce= cerebral eyes, ed= ejaculatory ducts, fg= female gonopore, in= intestine, m= mouth, mg= male gonopores, p= pharynx, pd= prostatic duct, pp= penis papilla, pt= pseudotentacles, pv= prostatic vesicle, s= sucker, sv= seminal vesicle, st= style, te= tentacular eyes.
FIGURE 8. Duplominona uniserta n in New species of Duplominona Karling, 1966 (Platyhelminthes, Proseriata) from the Pacific coast of Panama
FIGURE 8. Duplominona uniserta n. sp. (A) Habitus of a living animal; see Fig. 2 A for interpretation of anatomical features. (B) General topography of the genital organs from a living animal. (C) Reconstruction of the cirrus. (D) Spine morphology. (E, F) Micrograph of the living animal. (G) Micrograph of the cirrus; distal opening to the right (Scale bars: C, D, G = 10 μm; E = 100 μm; F = 50 μm).
FIGURE 13 in Two new brackish-water species of Macrostomum (Platyhelminthes, Macrostomida) from mangrove wetland in southern China
FIGURE 13. The phylogenetic tree of the concatenated sequences of 18S and 28S rDNA genes with Neighbor-Joining method. (bootstrap=1000, Kimura 2-parameter type)
FIGURE 7 in Description of a new Notocomplana species (Platyhelminthes: Acotylea), new combination and new records of Polycladida from the northeastern Sea of Japan, with a comparison of two different barcoding markers
FIGURE 7. Notocomplana septentrionalis (Kato, 1937) in the living state, showing two color varieties. A. ICHUM5289 (nontype). B. ICHUM5298 (non-type).
Figure 6. Amphibioplana onnisi. A, RMNH.VER. 19957.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 6. Amphibioplana onnisi. A, RMNH.VER. 19957.a, photomicrograph of sagittal section of the anterior end, showing dorsal (de) and ventral epidermis (ve) being uniformly clothed with cilia (c); B, RMNH.VER. 19960.g, photomicrograph of horizontal section of the posterior end, showing adhesive glands (ag) discharging their secretion through the epidermis.
Figure 7. 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 7. Amphibioplana onnisi. A, holotype RMNH.VER. 19956.a, photomicrograph of a horizontal section of the head, with the brain (b) and the post-cephalic region, also showing the anterior intestinal branch (aib), left ovary (lo) with its tuba (tu) and the first tract of the left oviduct (lod), the most anterior vitellaria (vi) and testes (t); B, RMNH.VER. 19958.f, photomicrograph of a horizontal section of the post-pharyngeal region with the copulatory apparatus, showing the most caudal vitellaria (vi) and the two caudal gut trunks fusing to form a single branch (pib).
Figure 11. 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 11. Amphibioplana onnisi. A, holotype RMNH.VER. 19956.a, sagittal reconstruction of the copulatory apparatus; anterior to the right; B, CGAS Pla 22.3, sagittal reconstruction of the copulatory apparatus; anterior to the right.
FIGURE 2 in Another alien terrestrial planarian in the United Kingdom: Australopacifica atrata (Steel, 1897) (Platyhelminthes: Tricladida: Continenticola)
FIGURE 2. Australopacifica atrata: a, several specimens apparently feeding on a rotten plum (photo Mari Lloyd, specimens from Llanbedr, Gwynedd); b, specimens feeding on an earthworm (photo Paul Chanin, specimens from Crediton, Devon); c, specimen showing the ventral and lateral striation (photo Lloyd Davies, specimen from Dorset, this and other photos at: https://www.flickr.com/photos/155359040@N04/sets/72157669386440579/); d, UK distribution map as currently known. The Ordnance Survey 100 km grid is shown, each dot represents a single 10 km x 10 km square; e, Figure 10 of Steel (1897) (as Geoplana atrata). In the original figure the worm is about 51 mm long reproduced at x3, thus 17 mm long (a, b and c are dorsal, ventral and transverse section respectively); f, ventro-lateral view of a preserved specimen from Wisley, Surrey, showing the anterior sensory margin and pharyngeal aperture. The circle in the container is 2.5 mm in diameter, the worm is 13 mm long; g, NHMUK97.11.1.47, Geoplana atrata,?co-type, Manning River NSW, ventral view showing striations, length 12 mm.
FIGURE 5 in Another alien terrestrial planarian in the United Kingdom: Australopacifica atrata (Steel, 1897) (Platyhelminthes: Tricladida: Continenticola)
FIGURE 5. Australopacifica atrata: a and c, longitudinal sections through an ovary at different magnifications; b and d, longitudinal sections through testes at different magnifications; e, mid-ventral transverse section showing the parenchymal musculature; f, mid-ventral longitudinal section showing the parenchymal musculature; g, longitudinal section through the pharynx and pharyngeal opening, anterior to the left. Scales as shown, that in e = 500 μm.
Fig. 18 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama
Fig. 18 Trigonostomum franki Willems et al., 2004b. a Body organisation (live animal). b, d Stylet. c, e Bursal appendage. b–e From the whole mount. a, d, e Structures oriented with the anterior end toward the left side of the plate. b, c Structures oriented with the anterior end toward the top of the plate
Fig. 17 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama
Fig. 17 Trigonostomum armatum (Jensen, 1878) Gamble, 1900. a Body organisation (live animal). b Atrial organs. c Stylet. b, c From a whole mount. a Structures oriented with the anterior end toward the left side of the plate. b–c Structures oriented with the anterior end toward the top of the plate
Fig. 15 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama
Fig. 15 Male genital structures in the new species of Promesostoma (from the holotype). a Promesostoma baculum sp. n. b Promesostoma cubanum sp. n. c Promesostoma cubitum sp. n. d Promesostoma panamaense sp. n. e Promesostoma roseapharynx sp. n. f Promesostoma toryne sp. n. a, d–e Structures oriented with the anterior end toward the left side of the plate. b, c, f Structures oriented with the anterior end toward the top of the plate
Fig. 12 a–c in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama
Fig. 12 a–c Promesostoma baculum sp. n. d, e Promesostoma cubanum sp. n. a, d Body organisation. b, e Schematic reconstruction of the male genital structures. c, e Stylet (from the holotype). Structures oriented with the anterior end toward the top of the plate
Fig. 9 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama
Fig. 9 Byrsophlebs thalassicola sp. n. a, b Body organisation (live animal). c–e Stylets. f Schematic reconstruction from sagittal sections of the pharynx and the genital systems from the right side. c From the holotype. a–e Structures oriented with the anterior end toward the top of the plate. f Structures oriented with the anterior end toward the right side of the plate
Fig. 8 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama
Fig. 8 Micrographs of the atrial organs of species of Gaziella, from the holotypes. a–c, Gaziella cochleata sp. n. d G. glandulosa sp. n. e, f G. microcirra sp. n. a–c, e–f Structures oriented with the anterior end toward the top of the plate. d Structures oriented with the anterior end toward the left side of the plate
Fig. 6 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama
Fig. 6 Species of Gaziella. a, b Gaziella cochleata sp. n. c, d G. glandulosa sp. n. e–g G. microcirra sp. n. a, c, e Body organisation (live animals). b, d, e, f Cirrus and sclerotised cap from the holotypes. Structures oriented with the anterior end toward the top of the plate
Fig. 23 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama
Fig. 23 Majority-rule consensus tree from the Bayesian analysis of the concatenated 18S rDNA + 28S rDNA + cox1 of Trigonostomum. Branches with support values below the thresholds in the legend of the three analyses were collapsed. Symbols above branches represent posterior probabilities (: 0.90 ≤ pp <0.95). Symbols below branches indicate SH-aLRT (: 99 ≤ SH-aLRT <100;
Fig. 4 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama
Fig. 4 Neokytorhynchus pacificus Ehlers & Ehlers, 1981. a, b Body organisation (live animals). c Schematic reconstruction from sagittal sections of the anterior invagination. d Schematic reconstruction from sagittal sections of pharynx and the genital systems from the right side; the left ovary and the vitellaria are not drawn. a, b Structures oriented with the anterior end toward the top of the plate. c Structures oriented with the anterior end toward the left side of the plate. e Structures oriented with the anterior end toward the right side of the plate
Fig. 3 in Taxonomy and phylogeny of Dalytyphloplanida Willems et al., 2006 (Platyhelminthes: Rhabdocoela), with the description of a new family, a new genus, and sixteen new species from Cuba and Panama
Fig. 3 Kytorhynchus (Eukytorhynchus) microstylus Rieger, 1974. a Body organisation (live animal). b, c Stylet (from a whole mount). Kytorhynchus (Eukytorhynchus) yusdieli sp. n. d Body organisation (live specimen). e, f Stylet (from the holotype). a, d Structures oriented with the anterior end toward the right side of the plate. b, c, e, f Structures are oriented with the anterior end toward the top of the plate
Fig. 4 in Dugesia hepta and Dugesia benazzii (Platyhelminthes: Tricladida): two sympatric species with occasional sex?
Fig. 4 Bayesian inference tree of dataset II (Dunuc12). Node support values are displayed as in Fig. 3. Bar diagrams indicate the species assignation of samples based on the ITS-1 criterion and karyology. It is
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