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66 results for “Xingu River”
FIGURE 6 in New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
FIGURE 6 | Radiograph images of the holotype of Phenacorhamdia suia, MNRJ 24850, 81.8 mm SL. Lateral (top) and ventral (bottom) views.
FIGURE 3 in New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
FIGURE 3 | Left dentary of Phenacorhamdia suia, paratype, LBP 15886, 51.3 mm SL (c&s). A. Dorsal view of medial portion of dentary teeth (scale bar = 0.1 mm) and B. Dorsal view of entirely dentary teeth (scale bar = 0.5 mm).
FIGURE 4 in New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
FIGURE 4 | Lateral, dorsal and ventral view of head of Phenacorhamdia suia, LBP 15886, 79.9 mm SL, paratype, showing the cephalic laterosensory pores. Infraorbital pores (i1–i6); Preoperculomandibular pores (pm1–pm11); Postotic pores (po1–po2); Supraorbital pores (s1–s3, and s8).
FIGURE 1 in New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
FIGURE 1 | Phenacorhamdia suia, MNRJ 24850, holotype, 81.8 mm SL, Brazil, Mato Grosso State, São Félix do Araguaia, upper Xingu River basin. Photographed by Dario Faustino-Fuster.
FIGURE 5 in New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
FIGURE 5 | Lateral view of bifid hemal spines of vertebrae 27 to 31, located dorsally to anal-fin pterygiophores. Phenacorhamdia suia, paratype, LBP 15886 (1 c&s), 51.3 mm SL.
FIGURE 2 in New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
FIGURE 2 | Phenacorhamdia suia, paratypes, LBP 15886: A. 79.9 mm SL; B. 65.7 mm SL; C. 56.0 mm SL. Photographed by Lais Reia.
Fig. 1 in Cytogenetic analysis of Baryancistrus xanthellus (Siluriformes: Loricariidae: Ancistrini), an ornamental fish endemic to the Xingu River, Brazil
Fig. 1. Live photograph of Baryancistrus xanthellus, LIA 1629.
Figure 2. - Bayesian (GTR+Γ+I and HKY+Γ models) and maximum likelihood 50% majority-rule consensus tree. Numbers in the nodes represent posterior probabilities (GTR+Γ+I and HKY+Γ, respectively), and bootstrap value for maximum likelihood and parsimony analyses, respectively. c1–Bragança, Pará; c2–Santa Maria do Pará, Pará; c3–National Forest of Amapá, Amapá; c4–Belém, Pará; i1–Solimões River, near Manaus, Amazonas; i2–Xingu River, Altamira, Pará; i3 and i4–Itacoatiara, Amazonas. MYBP–million years before present.
Figure 2. - Bayesian (GTR+Γ+I and HKY+Γ models) and maximum likelihood 50% majority-rule consensus tree. Numbers in the nodes represent posterior probabilities (GTR+Γ+I and HKY+Γ, respectively), and bootstrap value for maximum likelihood and parsimony analyses, respectively. c1–Bragança, Pará; c2–Santa Maria do Pará, Pará; c3–National Forest of Amapá, Amapá; c4–Belém, Pará; i1–Solimões River, near Manaus, Amazonas; i2–Xingu River, Altamira, Pará; i3 and i4–Itacoatiara, Amazonas. MYBP–million years before present.
Figure 1. - Sample sites of Palaemoncarteri, Palaemonivonicus and Palaemonyuna sp. n. c1–Bragança, Pará; c2–Santa Maria do Pará, Pará; c3–National Forest of Amapá, Amapá; c4–Belém, Pará; i1–Solimões River, near Manaus, Amazonas; i2–Xingu River, Altamira, Pará; i3 and i4–Itacoatiara, Amazonas; AC-Acre; AM-Amazonas; AP-Amapá; MS-Mato Grosso do Sul; MT-Mato Grosso; PA-Pará and RO-Rondônia.
Figure 1. - Sample sites of Palaemoncarteri, Palaemonivonicus and Palaemonyuna sp. n. c1–Bragança, Pará; c2–Santa Maria do Pará, Pará; c3–National Forest of Amapá, Amapá; c4–Belém, Pará; i1–Solimões River, near Manaus, Amazonas; i2–Xingu River, Altamira, Pará; i3 and i4–Itacoatiara, Amazonas; AC-Acre; AM-Amazonas; AP-Amapá; MS-Mato Grosso do Sul; MT-Mato Grosso; PA-Pará and RO-Rondônia.
FIGURE 1 in Diversity of Loricariidae (Actinopterygii: Siluriformes) assemblages in two Conservation Areas of the Middle Xingu River, Brazilian Amazon, and their suitability for sustainable ornamental fisheries
FIGURE 1 | Map of the collection areas in the Xingu and Iriri River Extractive Reserves.
FIGURE 6 in Krobia xinguensis, a new species of cichlid fish from the Xingu River drainage in Brazil (Teleostei: Cichlidae)
FIGURE 6. Comparative morphometrics of species of Krobia. Caudal peduncle depth plotted against Standard Length.
FIGURE 1. Krobia xinguensis, INPA 35653 in Krobia xinguensis, a new species of cichlid fish from the Xingu River drainage in Brazil (Teleostei: Cichlidae)
FIGURE 1. Krobia xinguensis, INPA 35653. Holotype, adult male, 74.4 mm SL. Brazil, State of Pará, Ilha de Babaquara, rio Xingu.
FIGURE 8 in Krobia xinguensis, a new species of cichlid fish from the Xingu River drainage in Brazil (Teleostei: Cichlidae)
FIGURE 8. Comparative morphometrics of species of Krobia. Plot of scores of sheared principal component II against sheared principal component III, based on distance data.
FIGURE 7 in Krobia xinguensis, a new species of cichlid fish from the Xingu River drainage in Brazil (Teleostei: Cichlidae)
FIGURE 7. Comparative morphometrics of species of Krobia. Body depth plotted against Standard Length.
Distribution. The Guianas and Guianan region of NE Brazil and E Amazon Basin E of the Rio Negro and N of the Amazon River, but extending S of the Amazon to the E of the Rio Xingu in E Brazil. in Echimyidae
Distribution. The Guianas and Guianan region of NE Brazil and E Amazon Basin E of the Rio Negro and N of the Amazon River, but extending S of the Amazon to the E of the Rio Xingu in E Brazil.
Distribution. Amazonian lowlands of E Brazil S of the Amazon River, extending S to the cerrado biome in EC Brazil, primarily in the Rio Tapajos, Rio Xingu, and Rio Tocantins-Araguaia fluvial systems of Para, Maranhao, Tocantins, Minas Gerais, Goias, and Mato Grosso states. in Echimyidae
Distribution. Amazonian lowlands of E Brazil S of the Amazon River, extending S to the cerrado biome in EC Brazil, primarily in the Rio Tapajos, Rio Xingu, and Rio Tocantins-Araguaia fluvial systems of Para, Maranhao, Tocantins, Minas Gerais, Goias, and Mato Grosso states.
Distribution. Brazilian Amazon, S of the Rio Amazonas, between the Tapajos/Juruena system and the Tocantins/Araguaia river system to the E, in the Brazilian states of Para and Mato Grosso; the exact S limit ofits distribution is unclear, but it seems likely that it coincides with the transition between the Amazon rainforest and the cerrado savannas of C Brazil; this ecotone encompasses headwaters of the Xingu and Tapajos river systems in N Mato Grosso. Vieira's Titi (C. vieirai) is also known to occur in this region, but there are too few records to confirm whether their distributions intergrade, or in fact where the exact limits of their distributions are. One recent study also found that the Red-bellied Titi may be absent from or present at extremely low densities in large areas of the Tocantins-Xingu interfluvium. Given the overall lack of records, while it is clear that the Red-bellied Titi occurs over a vast area of the SE Amazon Basin, the exact limits of its distribution within this area remain unclear. in Phitheciidae
Distribution. Brazilian Amazon, S of the Rio Amazonas, between the Tapajos/Juruena system and the Tocantins/Araguaia river system to the E, in the Brazilian states of Para and Mato Grosso; the exact S limit ofits distribution is unclear, but it seems likely that it coincides with the transition between the Amazon rainforest and the cerrado savannas of C Brazil; this ecotone encompasses headwaters of the Xingu and Tapajos river systems in N Mato Grosso. Vieira's Titi (C. vieirai) is also known to occur in this region, but there are too few records to confirm whether their distributions intergrade, or in fact where the exact limits of their distributions are. One recent study also found that the Red-bellied Titi may be absent from or present at extremely low densities in large areas of the Tocantins-Xingu interfluvium. Given the overall lack of records, while it is clear that the Red-bellied Titi occurs over a vast area of the SE Amazon Basin, the exact limits of its distribution within this area remain unclear.
Distribution. French Guiana and N Brazil (Amapa and S of the Amazon and E of the Xingu River in Para, including Marajo I), probably also in Suriname. in Didelphidae
Distribution. French Guiana and N Brazil (Amapa and S of the Amazon and E of the Xingu River in Para, including Marajo I), probably also in Suriname.
FIGURE 1 in Cladocera from the Upper Xingu River Basin with the description of a new genus of the Chydoridae (Crustacea: Branchiopoda: Anomopoda)
FIGURE 1. Study area and sampling sites from the Upper Xingu River Basin (A–G). B, stream, site 1. C, stream, site 2. D, stream, site 3. E, stream, site 4. F, stream, site 6. G, Dam, site 5. Photos by Msc. Tiago Borges Kisaka, Dr. KathiJo Jankowski and Dr. Nubia Marques.
FIGURE 6 in Cladocera from the Upper Xingu River Basin with the description of a new genus of the Chydoridae (Crustacea: Branchiopoda: Anomopoda)
FIGURE 6. Kisakiellus aweti gen. nov., sp. nov. A–C, postbdomen. A, lateral view. B, dorsal view. C, postabdominal seta. D– E. hypothetical representation of the functional morphology and positive rheotactic behavior. D, arrow indicate the proposed dynamics of water flow in a lateral view. E, arrows indicate the proposed dynamics of water flow in a dorsal view. Scale bars = 50 µm.
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