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1,925 results for “Platyhelminthes”
Figure 1. A in Revision of the systematics of the Polystomoidinae (Platyhelminthes, Monogenea, Polystomatidae) with redefinition of Polystomoides Ward, 1917 and Uteropolystomoides Tinsley, 2017
Figure 1. A: Non-lethal procedure for retrieving a polystome from the pharyngeal pouches of a freshwater turtle; B: polystome collected on wooden stem cotton swab.
Figure 2 in Revision of the systematics of the Polystomoidinae (Platyhelminthes, Monogenea, Polystomatidae) with redefinition of Polystomoides Ward, 1917 and Uteropolystomoides Tinsley, 2017
Figure 2. Micrograph of the reproductive system of Polystomoides multifalx (Stunkard, 1924). Abbreviations: Gb, genital bulb; Te, testis; Ut, Uterus with eggs; Va, vagina. Scale bar = 200 μm.
Figure 11 in Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin
Figure 11. Haptoral and genital hard parts of Onchobdella ximenae n. sp. from Hemichromis elongatus. Accessory piece of the MCO in grey, to highlight the plate-like structure of the accessory piece. I-VI, hooks; AP, accessory piece; DA, dorsal anchors; DB, dorsal transverse bar; MCO, male copulatory organ; Pe, penis; VA, ventral anchors; VB, ventral transverse bars; Vg, vagina. Scale bar: 20 µm, scale bar of the MCO 10 µm.
Figure 9 in Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin
Figure 9. Haptoral and genital hard parts of Cichlidogyrus omari n. sp. from Tylochromis praecox. Accessory piece of the MCO in grey, to highlight the plate-like structure of the accessory piece. I–VII, hooks; AP, accessory piece; DA, dorsal anchors; DB, dorsal transverse bar; MCO, male copulatory organ; Pe, penis; VA, ventral anchors; VB, ventral transverse bar. Scale bar: 20 µm.
Figure 3 in Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin
Figure 3. Haptoral and genital hard parts of Cichlidogyrus bixlerzavalai n. sp. from Tylochromis praecox. Accessory piece of the MCO in grey, to highlight the plate-like structure of the accessory piece. I–VII, hooks; AP, accessory piece; DA, dorsal anchors; DB, dorsal transverse bar; MCO, male copulatory organ; Pe, penis; VA, ventral anchors; VB, ventral transverse bar. Scale bar: 20 µm.
Figure 2 in Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin
Figure 2. Schematic representation of the measurements taken of the hard parts of specimens of Cichlidogyrus and Onchobdella. Structures from top left to bottom right: anchor, ventral transverse bar, MCO, dorsal transverse bar, vagina and hook. Abbreviations: I–VII, hook length; a, total anchor length; Ap, length of accessory piece; b, blade length; c, shaft length; d, guard length, e, point length; h, auricle length; He, Heel length; l, vagina width; L, vagina length; Pe, penis length; W, maximum width of ventral transverse bar; w, maximum width of dorsal transverse bar; X, branch length of ventral transverse bar; x, total length of dorsal transverse bar; y, distance between auricles.
Figure 6 in Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin
Figure 6. Haptoral and genital hard parts of Cichlidogyrus polyenso n. sp. from Hemichromis elongatus. Accessory piece of the MCO in grey, to highlight the plate-like structure of the accessory piece. I–VII, hooks; AP, accessory piece; DA, dorsal anchors; DB, dorsal transverse bar; MCO, male copulatory organ; Pe, penis; VA, ventral anchors; VB, ventral transverse bar; Vg, vagina. Scale bar: 20 µm.
Figure 1 in Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin
Figure 1. Overview of sampling localities (red dots) with the ecoregions in italics. Localities 3 and 5 are located within the cities MbanzaNgungu and Kisantu, respectively. The inset shows the Lower Congo region on the African continent. Sampling localities: 1, Tondé Estuary near Muanda (05°57035.900 S 12°21058.400 E); 2, Muila Kaku, mangroves near Lower Congo River (05°5903300 S 12°35003.200 E); 3, Ndimba Leta ponds, Mbanza-Ngungu, in between the Lunzadi and Lukasi rivers of which the latter flows into the Kwilu and Likunga (05°1501000 S 14°5102400 E); 4, Pond near Kila Kindinga and Lukasi river (5°290700 S 14°530400 E); 5, Inkisi River, off the Jardin botanique de Kisantu (05°0800200 S 15°0305200 E); 6, Mvuazi River, Inkisi (5°190 S 15°70 E); 7, Mbola River near Tshianya village (05°52009.800S 12°39052.600 E); 8, Congo River near Nganda Flash station (06°02001.800 S 12°31048.200E), 9, Muila Nzenze, Kibamba village, mangroves near Congo River (06°00006.800 S 12°4002700 E). Rivers in blue.
Figure 10 in Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin
Figure 10. Haptoral and genital hard parts of Cichlidogyrus reversati from Coptodon tholloni. Accessory piece of the MCO in grey, to highlight the plate-like structure of the accessory piece. I–VII, hooks; AP, accessory piece; DA, dorsal anchors; DB, dorsal transverse bar; MCO, Male Copulatory Organ; Pe, penis; VA, ventral anchors; VB, ventral transverse bar. Scale bar: 20 µm.
Figure 7 in Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin
Figure 7. Haptoral and genital hard parts of Cichlidogyrus kmentovae n. sp. from Hemichromis stellifer. Accessory piece of the MCO in grey, to highlight the plate-like structure of the accessory piece. I-VII, hooks; AP, accessory piece; DA, dorsal anchors; DB, dorsal transverse bar; MCO, male copulatory organ; Pe, penis; VA, ventral anchors; VB, ventral transverse bar; Vg, vagina. Scale bar: 20 µm.
Figure 5 in Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin
Figure 5. Haptoral and genital hard parts of Cichlidogyrus calycinus n. sp. from Hemichromis elongatus. Accessory piece of the MCO in grey, to highlight the plate-like structure of the accessory piece. I–VII, hooks; AP, accessory piece; DA, dorsal anchors; DB, dorsal transverse bar; MCO, male copulatory organ; Pe, penis; VA, ventral anchors; VB, ventral transverse bar; Vg, vagina. Scale bar: 20 µm.
Figure 8 in Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin
Figure 8. DIC micrographs of (a–b) Cichlidogyrus kmentovae n. sp. from Hemichromis stellifer: haptor (a), MCO (b); of (c–d) Cichlidogyrus omari n. sp. from Tylochromis praecox: haptor of holotype (c), MCO of holotype (d); compound micrographs of (e–f) Onchobdella ximenae n. sp. from Hemichromis elongatus: haptor (e), MCO (f). Scale bar 20 µm, except for (e) 50 µm.
Figure 4 in Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin
Figure 4. Compound micrographs of (a–c) Cichlidogyrus bixlerzavalai n. sp. from Tylochromis praecox: haptor of holotype (a), MCO of holotype (b) and MCO of paratype (c); of (d–f) Cichlidogyrus calycinus n. sp. from Hemichromis elongatus: haptor of holotype (d), MCO of holotype (e), vagina of holotype (f); of (g–h) Cichlidogyrus polyenso n. sp. from Hemichromis elongatus: haptor (g), MCO (h). Scale bar 20 µm, except for (g) 50 µm.
Figure 6 in A geometric morphometric approach to the analysis of the shape variability of the haptoral attachment structures of Ligophorus species (Platyhelminthes: Monogenea)
Figure 6. Combination of the outlines of all dorsal anchors of each analyzed Ligophorus species (other haptoral structures outlines see http://marineparasites.org/morphometry/
Figure 5 in A geometric morphometric approach to the analysis of the shape variability of the haptoral attachment structures of Ligophorus species (Platyhelminthes: Monogenea)
Figure 5. Cluster (A, C) and PC analysis (B, D) of the combinations of four harmonics for each dorsal and ventral anchors, and ventral bar obtained for each Ligophorus specimens. Upper graphs (A, B) are based on the size-invariant EFDs; lower graphs (C, D) – on the size-considered EFDs.
Figure 4 in A geometric morphometric approach to the analysis of the shape variability of the haptoral attachment structures of Ligophorus species (Platyhelminthes: Monogenea)
Figure 4. PCA of the size-invariant (A, C, E) and size-considered (B, D, F) harmonics of the dorsal (А, B) and ventral (C, D) anchors, and the ventral bars (E, F) of Ligophorus species. All graphs are based on fifty harmonics. Keys: dots – dorsal anchors; triangles – ventral anchors; rhombus – ventral bars.
Figure 2. A in A geometric morphometric approach to the analysis of the shape variability of the haptoral attachment structures of Ligophorus species (Platyhelminthes: Monogenea)
Figure 2. A After the automatic normalization, the outlines of anchors still have different orientation of the blades, different positions of the digitization starting point and directions of digitization; this affects the signs of the first harmonic components, which are shown in pink rectangle, and the signs of identical components differ. B, C After manual correction of the orientation of anchors (B) and bars (C), the outlines and signs of first harmonic components are identical.
Figure 3 in A geometric morphometric approach to the analysis of the shape variability of the haptoral attachment structures of Ligophorus species (Platyhelminthes: Monogenea)
Figure 3. PCA of the size-invariant (A, B) and the size-considered (C, D) harmonics of all dorsal and ventral anchors of analyzed Ligophorus species. Left graphs (A, C) are based on fifty harmonics; right graphs (B, D) – on four ones. Keys: dots – dorsal anchors; triangles – ventral anchors.
Figure 1. A in A geometric morphometric approach to the analysis of the shape variability of the haptoral attachment structures of Ligophorus species (Platyhelminthes: Monogenea)
Figure 1. A Ligophorus szidati dorsal (top) and ventral (bottom) anchors were outlined by cubic Bezier polylines and stored in SVG files. B ElFourier computer program converted digitized outlines into 50 EFDs. Only first four harmonics are visible at the screenshot's bottom; the negative components of harmonics are colored in light gray. The restored outline perfectly satisfies the shape of anchor (red line around gray anchor). At the left side used anchors are shown; they differ by orientation of blades and direction of digitization; outlines oriented counterclockwise are filled.
Fig. 2 in Tegumental topography and molecular characterisation of two trematodes (Platyhelminthes: Digenea) from Clarias gariepinus (Burchell, 1822) in Kenya
Fig. 2. Scanning electron micrographs of Glossidium pedatum. (A) Round oral sucker, (B) spine surrounding the oral sucker (C) location of the genital pore and a protruding cirrus, (D) structure of the cirrus sac (abbreviations: pl-papillae like lappet; os-oral sucker; pp-papillae; dp-dome papillae; vs-ventral sucker; gp-genital pore; c -cirrus; rp-rows of small papillae).
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
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