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Fig. 1 in Avaliação da influência de fatores hidroclimáticos sobre a estrutura populacional de Podocnemis expansa (Testudines: Podocnemididae) no Rio Formoso, sudeste da Amazônia brasileira

Fig. 1. LocalizaÇÃo da área de estudo no Rio Formoso, municÍpio de Lagoa da ConfusÃo, Tocantins, Brasil. Hidrografia representada em azul; limites do municÍpio da Lagoa da ConfusÃo/TO em vermelho; APA, Área de ProteÇÃo Ambiental; UC, Unidade de ConservaÇÃo.

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Fig. 1 in Helminth's assemblage of Trachemys dorbigni (Testudines: Emydidae) in southern Brazil: implications of anthropogenic environments and host's genders

Fig. 1. Overall layout of the collection environments in the study of helminth assemblage of Trachemys dorbigni in southern Brazil: A, detail of the Centro Agropecuário da Palma (UFPel), rural area of CapÃo do LeÃo, State of Rio Grande do Sul, Brazil; B, detail of the urban Área of Pelotas, Rio Grande do Sul, Brazil. Source: extracted and modified the site Google® Earth (©2014 Google – Images ©2014 Digital Globe).

opencc-by-4.0Aug 2024View details →

Fig. 2 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. 2. Line drawings of Acanthoatractis xinguensis n. gen., n. sp. (Female) (A) Posterior extremity of body, region of vulva and anus, lateral view. (B) Reproductive tract showing monodelphic uterus, lateral view.

opencc-by-4.0Aug 2024View details →

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.

opencc-by-4.0Aug 2024View details →

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. 2 in New species of Serpinema (Nematoda: Camallanidae) from the scorpion mud turtle Kinosternon scorpioides (Testudines: Kinosternidae) from eastern Amazon, Brazil

Fig. 2. Line drawings of Serpinema pelliculatus n. sp. (a) Posterior region of male, lateral view. (b) Posterior region of male, ventral view. (c) Spicule, ventral view. (d) Posterior region of female, lateral view. (e) Vulva, lateral view.

Fig. 1 in New species of Serpinema (Nematoda: Camallanidae) from the scorpion mud turtle Kinosternon scorpioides (Testudines: Kinosternidae) from eastern Amazon, Brazil

Fig. 1. Line drawings of Serpinema pelliculatus n. sp. (a) Anterior region of female, lateral view. (b) Anterior region of male, lateral view. (c) Buccal capsule of female, lateral view. (d) Buccal capsule of male, lateral view. (e) Basal ring, apical view. (f) Anterior curved sclerotized structures, lateral view. (g) Cephalic extremity of male, apical view (h) Trident of male, ventral view. (i) Buccal capsule of male, apical view.

Fig. 3 in New species of Serpinema (Nematoda: Camallanidae) from the scorpion mud turtle Kinosternon scorpioides (Testudines: Kinosternidae) from eastern Amazon, Brazil

Fig. 3. Scanning electron microscopy of Serpinema pelliculatus n. sp. (a) Anterior end of male, subventral view; (b) Vulva, subventral view. (c) Posterior region of female, ventral view. (d) Tip tail of female, ventrolateral view. (e) Posterior region of male, subventral view (arrowheads indicate papillae). Abbreviations: anterior lip, Al; anus, An; posterior lip, Pl; trident, Tr.

FIG. 8. Mongolemys elegans, additional material. IGM 90 in New material of Mongolemys elegans Khosatzky and Mlynarski, 1971 (Testudines: Lindholmemydidae), from the Late Cretaceous of Mongolia with comments on bone histology and phylogeny

FIG. 8. Mongolemys elegans, additional material. IGM 90/30, small articulated shell: A–B, dorsal view; C–D, ventral view. IGM 90/22–23, one juvenile and one hatchling associated shells: E–F, dorsal view. IGM 90/31, nearly complete plastron of a juvenile: G–H, ventral view. IGM 90/51, complete carapace and caudal vertebrae series: I–J, ventral view. IGM 90/54, partial carapace showing the complete series of thoracic vertebrae: K–L, ventral view. IGM 90/41, complete right hyoplastron from a juvenile specimen: M, ventral view; N, dorsal view. Abbreviations: abs, axillary buttress scar; brg, bridge; cav, caudal vertebra. (See fig. 4 for remaining abbreviations).

FIG. 10 in New material of Mongolemys elegans Khosatzky and Mlynarski, 1971 (Testudines: Lindholmemydidae), from the Late Cretaceous of Mongolia with comments on bone histology and phylogeny

FIG. 10. Phylogenetic hypotheses for the relationship of Mongolemys elegans among cryptodires. A, strict consensus tree including all characters and taxa as in appendix 1. Taxa outside of Cryptodira were excluded for the purpose of this figure. Tree length (TL): 449, Consistency index (CI): 0.434, Retention index (RI): 0.802, Rescaled index (RC): 0.384. B, strict consensus after excluding all lindholmemydids except Mongolemys elegans and the three fossil testudinoids (Palaeoemys hessiaca, Achilemys cassouleti and Pseudochrysemy gobiensis). TL = 447, CI = 0.480, RI = 0.798, and RC = 0.382. Bootstrap values from 1000 heuristic search replicates (left) and Bremer support values (right) are provided above or below the branches they pertain too.

FIG. 4. Mongolemys elegans IGM 90 in New material of Mongolemys elegans Khosatzky and Mlynarski, 1971 (Testudines: Lindholmemydidae), from the Late Cretaceous of Mongolia with comments on bone histology and phylogeny

FIG. 4. Mongolemys elegans IGM 90/55, partially preserved skull. A–B, ventral view; C–D, dorsal view. Abbreviations in addition to those in figures 2 and 3: fbs, foramen caroticum basiphenoidale.

FIG. 6. Mongolemys elegans paratype IGM 90 in New material of Mongolemys elegans Khosatzky and Mlynarski, 1971 (Testudines: Lindholmemydidae), from the Late Cretaceous of Mongolia with comments on bone histology and phylogeny

FIG. 6. Mongolemys elegans paratype IGM 90/11, long bones. Left femur: A, ventral view; B, posterior. Right humerus: C, ventral view; D, dorsal view. Left tibia: E, dorsal view; F, ventral view. Left fibula: G, dorsal view; H, ventral view.

FIG. 2. Mongolemys elegans paratype IGM 90 in New material of Mongolemys elegans Khosatzky and Mlynarski, 1971 (Testudines: Lindholmemydidae), from the Late Cretaceous of Mongolia with comments on bone histology and phylogeny

FIG. 2. Mongolemys elegans paratype IGM 90/11, skull (cranium and lower jaw): A–B, dorsal view; C–D, ventrolateral view, removing the left ramus; E–F, ventral view, with the left ramus in place; G–H, lateral view; I–J, medial view of the left ramus and quadrate. Abbreviations: an, angular; ar, articular; bs, basisphenoid; cor, coronoid; den, dentary; fpc, foramen posterius canalis carotici; fr, frontal; fst, foramen stapedius temporalis; ju, jugal; mx, maxilla; pa, parietal; pf, prefrontal; pmx, premaxilla; po, postorbital; ppe, processus pterygoideus externus; pra, prearticular; pt, pterygoid; qu, quadrate; sa, surangular; scm, sulcus cartilaginous meckelii.

FIG. 9 in New material of Mongolemys elegans Khosatzky and Mlynarski, 1971 (Testudines: Lindholmemydidae), from the Late Cretaceous of Mongolia with comments on bone histology and phylogeny

FIG. 9. Mongolemys elegans, bone macrostructure and microstructure. Photographs of thin sections, all were taken in transmitted light, 40x otherwise is indicated. IGM 90/42, hatchling-juvenile specimen. A, external cortex and part of the cancellous bone of a costal; B–C, internal cortex and part of the cancellous bone of a costal; D, internal cortex and part of the cancellous bone of the hypoplastron; E, cancellous bone of the hypoplastron; F, external cortex of the hypoplastron. IGM 90/12, adult specimen. G, general view of the costal, showing the external, internal, and cancellous bone layers, photograph take in transmitted light, 10x. H, internal cortex of a costal; I, cancellous bone of a costal; J, external cortex of a costal. K–L, osteocytes in the cancellous bone, both taken in transmitted light, 63x oil lens. Abbreviations: cb, cancellous bone; ec, external cortex; ic, internal cortex; os, osteocyte; po, primary osteon; rb, reticular bone; sf, Sharpey's fiber; so, secondary osteon.

FIG. 5. Mongolemys elegans paratype IGM 90 in New material of Mongolemys elegans Khosatzky and Mlynarski, 1971 (Testudines: Lindholmemydidae), from the Late Cretaceous of Mongolia with comments on bone histology and phylogeny

FIG. 5. Mongolemys elegans paratype IGM 90/11, articulated shell (carapace and plastron): A–B, carapace, dorsal view; C–D, carapace, ventral view; E–F, plastron, ventral view; G–H, plastron, dorsal view. Abbreviations: abd, abdominal scale; anl, anal scale; axb, axillary buttress; c, costal; ce, cervical scale; en, entoplastron; ep, epiplastron; fem, femoral scale; gul, gular scale; hum, humeral scale, hyo, hyoplastron; hyp, hypoplastron; if, inframarginal scale; ing, inguinal buttress; isc, ischium; lpp, anal scale m, marginal scale; n, neural; p, peripheral; pl, pleural scale; pub, pubis; py, pygal scale; s, suprapygal scale, v, vertebral scale; xip, xiphiplastron. Missing portions of bone in black, scales in dotted lines. Labels in bold indicate scales.

FIG. 3. Mongolemys elegans paratype IGM 90 in New material of Mongolemys elegans Khosatzky and Mlynarski, 1971 (Testudines: Lindholmemydidae), from the Late Cretaceous of Mongolia with comments on bone histology and phylogeny

FIG. 3. Mongolemys elegans paratype IGM 90/11, isolated left otic chamber-quadrate: A–B, anterior view; C–D, medial view; E–F, posterior view. Abbreviations: ex, exoccipital; faf, fossa acustico-facialis; fnt, foramen nervi trigemini; ha, hiatus acusticus; op, opisthotic; pr, prootic; qu, quadrate; sa, surangular; scm, sulcus cartilaginous meckelii; so, supraoccipital; sq, squamosal.

FIG. 1 in New material of Mongolemys elegans Khosatzky and Mlynarski, 1971 (Testudines: Lindholmemydidae), from the Late Cretaceous of Mongolia with comments on bone histology and phylogeny

FIG. 1. Location of Mongolia in Asia, and the Bugin Tsav locality inside of Mongolia. (World template figure downloaded from Paleobiology Database on April 23 2011.)