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2,047 results for “turtles”
Fig. 1 in Acanthoatractis xinguensis n. gen., n. sp. (Nematoda: Cosmocercoidea: Atractidae) parasite of yellow-spotted Amazon river turtle, Podocnemis unifilis Troschel (Testudines: Podocnemididae) in Brazilian Amazon
Fig. 1. Line drawings of Acanthoatractis xinguensis n. gen., n. sp. (Male) (A) Cephalic extremity, apical view. (B) Cephalic extremity, apical view, highlighting the oral opening surrounded by sclerotized pieces and the distribution of open end wrench-shaped sclerotized structures. (C) Anterior extremity of body, ventral view. (D) Whole body, lateral view. (E) Details of spicules. (F) Posterior extremity of body, ventral view.
Fig. 3 in Acanthoatractis xinguensis n. gen., n. sp. (Nematoda: Cosmocercoidea: Atractidae) parasite of yellow-spotted Amazon river turtle, Podocnemis unifilis Troschel (Testudines: Podocnemididae) in Brazilian Amazon
Fig. 3. Scanning electron micrographs of Acanthoatractis xinguensis n. gen., n. sp. (A) Male, cephalic extremity, subapical view. (B) Anterior extremity of body, ventrolateral view. Inset: Detail of deirid, lateral view (Scale-bar: 10 μm); Detail of excretory pore, ventral view (Scale-bar: 10 μm). (C) Posterior extremity of male, ventrolateral, distribution of caudal papillae (arrowheads). Detail of phasmid, ventrolateral view (Scale-bar: 5 μm); Postcloacal papillae, ventrolateral view (Scalebar: 10 μm). (D) Posterior extremity of female, ventrolateral view, lines indicate vulva and anus. Abbreviations: Amphid, Am; anus, An; deirid, De; excretory pore, Ep; single median papilla, Sm; vulva, Vu.
Fig. 1 in A new species of Orientatractis (Nematoda: Cosmocercoidea: Atractidae) parasite of Yellow-Spotted Amazon River Turtle, Podocnemis unifilis Troschel, 1848 (Testudines: Podocnemididae) in Brazilian Amazon
Fig. 1. Line drawings of Orientatractis matosi n. sp. (A) Female, whole body, ventral view. (B) Female, cephalic extremity, apical view (C) Posterior end of female, lateral view. (D) Male, whole body, lateral view. (E) Anterior extremity of body, ventrolateral view. (F) Details of spicules and gubernaculum. (G) Male, posterior end, ventral view.
Fig. 2 in A new species of Orientatractis (Nematoda: Cosmocercoidea: Atractidae) parasite of Yellow-Spotted Amazon River Turtle, Podocnemis unifilis Troschel, 1848 (Testudines: Podocnemididae) in Brazilian Amazon
Fig. 2. Scanning electron micrographs of Orientatractis matosi n. sp. (A) Cephalic extremity, apical view (amphidial pores, arrowheads). (B) Anterior extremity of body, lateral view, lines indicate deirid and excretory pore. (C) Posterior extremity of female, ventrolateral view, lines indicate vulva and anus. (D) Posterior extremity of male, ventrolateral, distribution of caudal papillae (arrows) and phasmids (arrowheads). Abbreviations: anus, An; deirid, De; excretory pore, Ep; vulva, Vu; single large submedian spine, a; submedian pointed spines, b. Inset: Cephalic end details, ventrolateral view (Scale-bar: 5 μm), Detail of excretory pore (Scale-bar: 5 μm).
Fig. 5 in Blood recovery of wild Mekong snail-eating turtles (Malayemys subtrijuga Schlegel and Müller, 1845) in captivity from leech infestation
Fig. 5. Morphological comparison of Malayemys subtrijuga no. 5 between week 0 (A and B) and week 17 (C and D).
Fig. 4 in Blood recovery of wild Mekong snail-eating turtles (Malayemys subtrijuga Schlegel and Müller, 1845) in captivity from leech infestation
Fig. 4. Symptoms of Placobdelloides siamensis infection on Malayemys subtrijuga: (A) Leech penetration beneath the keratin layer (scute) on plastron from no. 8; (B) Shell holes resulting from leech penetration on plastron from no. 7; (C) Epidermal lesion on the hind foot from no. 6; (D) Keratin mandible jaw with leech consumption from no. 4.
Fig. 3 in Blood recovery of wild Mekong snail-eating turtles (Malayemys subtrijuga Schlegel and Müller, 1845) in captivity from leech infestation
Fig. 3. Trend analysis of red blood cell count (RCC) (left) and white blood cell count (WCC) (right) of Malayemys subtrijuga during captivity recovery from 2 November 2018 (week 0) to 1 March 2019 (week 17). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 1 in Blood recovery of wild Mekong snail-eating turtles (Malayemys subtrijuga Schlegel and Müller, 1845) in captivity from leech infestation
Fig. 1. Analysis of the mean red blood cell count (RCC) (blue line) and white blood cell count (WCC) (green line) of Malayemys subtrijuga during captivity recovery from 2 November 2018 (week 0) to 1 March 2019 (week 17). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 2 in Blood recovery of wild Mekong snail-eating turtles (Malayemys subtrijuga Schlegel and Müller, 1845) in captivity from leech infestation
Fig. 2. Analysis of the mean weight of Malayemys subtrijuga during captivity recovery from 2 November 2018 (week 0) to 1 March 2019 (week 17).
Fig. 3 in Fatal spirorchiidosis in European pond turtles (Emys orbicularis) in Switzerland
Fig. 3. Phylogenetic analysis, (a) Maximum likelihood phylogenetic tree of 206 bp of the 28S rRNA gene of members of the family Spirorchiidae, with Alaria alata as outgroup. Members of the Spirorchis genus are boxed. Parasite names are provided, followed by host names (top clade only), GenBank accession numbers and country of parasite discovery. Bootstrap values above 70 are shown, and branch lengths corresponding to the number of base substitutions are indicated by the scale bar. (b) Unrooted phylogenetic network of 274 bp of the ITS2 region of Spirorchis spp. recently described from North Amercian turtle species (Roberts et al., 2019) and Swiss Emys orbicularis. Host names, location of discovery and GenBank accession numbers are given. Note that the unnamed Spirorchis parasite described from Graptemys ernsti (AL, United States) is 100% identical in both the partial 28S rRNA (MH843487), and ITS2 (MH678746) sequences amplified from all Swiss turtle specimens.
Fig. 2 in Fatal spirorchiidosis in European pond turtles (Emys orbicularis) in Switzerland
Fig. 2. Histopathological findings, (a) Five-year-old female European pond turtle (Emys orbicularis, ID2), small intestine. Multiple intravascular trematode eggs (narrow arrowheads) are present in the tunica muscularis, and submucosa associated with severe granulomatous inflammation and acute haemorrhage (large arrowheads). H&E staining, bar 500 μm. (b) Eleven-year-old female European pond turtle (Emys orbicularis, ID4), large intestine. The mucosa displays a focal deep ulceration (arrows) with replacement of the underlying submucosa and tunica muscularis by fibrous tissue (stars) and severe granulomatous coelomitis (asterisks). Multiple trematode eggs are present intravascularly, particularly in the subserosal vasculature (arrowheads). H&E staining, bar 200 μm. (c) ID2, small intestine. Focal granulomatous reaction with multinucleated giant cells (arrows) displaying intracytoplasmic, partially disrupted trematode eggs (arrowheads). H&E staining, bar 100 μm. (d) Adult male European pond turtle (Emys orbicularis ID5), testis. Interstitial granulomatous reaction composed of multinucleated giant cells (arrows) displaying intracytoplasmic embryonated (arrowheads) and non-embryonated (asterisk) trematode eggs. H&E staining, bar 50 μm.
Fig. 1 in Fatal spirorchiidosis in European pond turtles (Emys orbicularis) in Switzerland
Fig. 1. Gross findings and parasitology, (a) Gastrointestinal tract from a 6-year-old female European pond turtle (Emys orbicularis, ID8) displaying large numbers of spirorchiid eggs in the subserosal vessels (arrowheads), which are more visible in the intestine. Note the focal stricture of the intestine (arrow) with proximal severe dilation. This section was filled with a large amount of necrotic material. Bar 1 cm. (b) Autolytic testis from ID5 displaying similar lesions to the ones observed in the gastrointestinal tract from ID8 (arrowheads). Bar 25 mm. (c) Aspect of a spirorchiid egg stained with methylene blue identified following sedimentation from intestinal content. Light optical microscope, Bar 10 μm. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 2 in Serious lesions in Green turtles (Chelonia mydas) afflicted by fatal Spirorchiidiasis found stranded in south and southeastern Brazil
Fig. 2. (a–b). Granulomatous Thyroiditis, Thyroid, C. mydas. Figure a. Severe follicle destruction, with decreased number of follicles. Figure a. Inset: Parasitic granulomas associated with compressed, deformed, empty follicle (arrow). Figure b. Upper Inset: Atrophic thyroid follicles with normal epithelial cell (red arrow) and randomly pyknotic follicular cells (black arrow). Additionally note a type 3 egg (red arrow). Bottom Inset: Thyroid, Normal C. mydas thyroid. Figure c. Granulomatous Splenitis, Spleen, C. mydas. Large and severe coalescent granulomas associated with marked and diffuse lymphoid depletion and periarteriolar lymphatic sheaths loss. Upper Inset: Spleen. Normal C. mydas spleen, note periarteriolar lymphatic sheaths (black arrow). Bottom Inset: Higher magnification of granulomatous splenitis associated with periarteriolar lymphoid depletion, note arteriole (black arrow) and type 3 egg (red arrow). Figure d. Granulomatous Choroiditis, Ocular Bulb, C. mydas. Choroid layer diffusely replaced by severe granulomatous inflammation. Upper Inset: Choroid layer and retina. Normal C. mydas choroid layer (between red lines) and retina. Bottom Inset: Higher magnification of severe granulomatous inflammation associated with egg type 3 (red arrow), (hematoxylin and eosin staining). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article).
Fig. 1. a in Serious lesions in Green turtles (Chelonia mydas) afflicted by fatal Spirorchiidiasis found stranded in south and southeastern Brazil
Fig. 1. a. Severe and Generalized Granulomatous Interstitial Pneumonia, Lung, C. mydas. Lung tissue extensively affected by large parasitic multifocal to coalescent severe granulomas in interfaveolar septa with diffusely compressed and collapsed faveolus (*). Upper Inset: Parasite of the spirorchiidae family in pulmonary artery lumen. Bottom Inset: Lung. Normal C. mydas lung. Fig. 1 b. Severe and Generalized Granulomatous Interstitial Pneumonia, Lung, C. mydas. Higher magnification of severely enlarged interfaveolar septa with diffusely compressed and collapsed faveolus (*), note egg type 3 (red arrow). Inset: Thrombus formed by eggs, cellular debris, macrophages and multinucleated giant cells in artery. Fig. 1 c. Granulomatous Meningitis, Brain, Chelonia mydas. Parasitic granulomas associated with severe nervous tissue atrophy associated with cerebral cortex loss, note red line with 290 μm (cerebral cortex compression area) and black line (722 μm) without cerebral cortex compression. Inset: Embolism, Spinal Cord. Embolus formed by cluster of eggs (*) in arteriole. Fig. 1 d. Brain, Granulomatous Encephalitis, Chelonia mydas. Parasitic granulomas associated with neural parenchyma compression, note egg type 1 (red arrow), (hematoxylin and eosin staining). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article).
FIGURE 5 in The first fossil skull of Chelus (Pleurodira: Chelidae, Matamata turtle) from the early Miocene of Colombia
FIGURE 5. Comparison between height of the endocranium at the anterior (h1) and posterior (h2) end of the basisphenoid for three extant Chelus fimbriata specimens (black dots) vs the fossil Chelus sp. described here (red dot).
FIGURE 4 in The first fossil skull of Chelus (Pleurodira: Chelidae, Matamata turtle) from the early Miocene of Colombia
FIGURE 4. CT images of Chelus sp. and the extant C. fimbriata in sagittal view. These figures show the difference in the height of the endocranium between the fossil skull described here and juveniles and adults of the extant representative of Chelus; all cuts are located at the midline of the skull. 1, Chelus sp. MUN-STRI-dbid 38473 (adult); 2, C. fimbriata SM 37178 (adult); 3, C. fimbriata UMA R-1376 (hatchling-juvenile?); 4, C. fimbriata SM 57977 (juvenile). The basisphenoid bone is delimited by light blue color.
FIGURE 2 in The first fossil skull of Chelus (Pleurodira: Chelidae, Matamata turtle) from the early Miocene of Colombia
FIGURE 2. Skulls of Chelus fimbriata SM 37178 and Chelus sp. UNT-STRI-dbid 38473. Photographs and interpretative drawings. Chelus fimbriata SM 37178. 1-2, dorsal view; 3-4, ventral view; 5-6, posterior view. Chelus sp. MUNSTRI-dbid 38473 fossil from Castilletes Formation, Colombia. 7-8, dorsal view; 9-10, ventral view; 11-12, right lateral view; 13-14, posterior view. Abbreviations: bo, basioccipital; bs, basisphenoid; ex, exoccipital; fjp, foramen jugulare posterius; fm, foramen magnum; fn, foramen nervi hypoglossi, fp, fenestra postotica; fpcci, foramen posterior canalis caroticus cerebralis; fpp, foramen palatinum posterior; fr, frontal; fst, foramen stapedio temporalis; fts, fossa temporalis superior; ju, jugal; mx, maxilla; op, opisthotic; pa, parietal; pf, prefrontal; pl, palatine; pm, premaxilla; po, postorbital; pr, prootic; pt, pterygoid; qu, quadrate; so, supraoccipital; sq, squamosal; vo, vomer. Dotted line in 2 indicates sulci of skull scutes. Light grey areas in 8 indicate preservation of the dorsalmost surface of the bones. Scale bar applies for all figures.
FIGURE 3 in The first fossil skull of Chelus (Pleurodira: Chelidae, Matamata turtle) from the early Miocene of Colombia
FIGURE 3. CT images of Chelus sp. MUN-STRI-dbid 38473. 1, skull in dorsal view, arrows indicate the position of the cuts shown in 4-7. 2, horizontal cut on the lower portion of the skull, anterior to the foramen magnum. 3, horizontal cut at the level of the widest portion of the skull. 4, sagittal cut on the left portion of the skull. 5, sagittal cut at the midline of the skull. 6, coronal cut very close to the level of the basisphenoid-basioccipital contact. 7, coronal cut on the anterior portion of the skull. Abbreviations are as in Figure 2, plus apb (anterior process of basisphenoid).
FIGURE 1 in The first fossil skull of Chelus (Pleurodira: Chelidae, Matamata turtle) from the early Miocene of Colombia
FIGURE 1. Geographical and stratigraphical occurrence of Chelus sp. MUN-STRIdbid 38473. 1, map of the northernmost portion of South America, showing the location of Castilletes, on the Guajira Peninsula of Colombia. 2, stratigraphic column for the lower segment of the Castilletes Formation, Kaitamana section, including the horizon where Chelus sp. MUN-STRI-dbid 38473 was found, redrawn from Moreno et al. (2015). 3, landscape photograph of the locality where Chelus sp. MUN-STRI-dbid 38473 was found. 4, complete skeleton of Chelus fimbriata NMW 1859, orange shadowed area in the skull, represents the area preserved in the fossil Chelus sp. MUN-STRI-dbid 38473, down is the anterior view of the head of Ch. fimbriata (photo credit, Stuart Hamilton).
FIGURE 12 in Mammals from the earliest Uintan (middle Eocene) Turtle Bluff Member, Bridger Formation, southwestern Wyoming, USA, Part 1: Primates and Rodentia
FIGURE 12. Elymys? emryi new species from TBM, macrophotographs with corresponding line drawings of specimens: 1 and 9, LM1, SDSNH 110463; 2 and 10, RM1, SDSNH 110465; 3 and 11, RM1 (holotype), SDSNH 110466; 4 and 12, RM2, SDSNH 110444; 5 and 13, LM3, SDSNH 110448; 6 and 14, Rm1, SDSNH 110456; 7 and 15, Lm2, SDSNH 110457; 8 and 16, Lm3, SDSNH 110461. All occlusal views. Scale bar equals 1 mm.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.