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606 results for “Guyana”
FIGURE 3 in Pseudancistrus corantijniensis, a new species from the Guyana Shield (Siluriformes: Loricariidae) with a molecular and morphological description of the Pseudancistrus barbatus group
FIGURE 3. Comparison of snout odontodes and spotting pattern on the head of the four derived Guyanese Pseudancistrus. From left to right and up to down: Pseudancistrus depressus, Pseudancistrus barbatus, Pseudancistrus nigrescens and Pseudancistrus corantijniensis. Photographs by R. Covain, R. Kssas, S. Chraiti.
FIGURE 6 in Pseudancistrus corantijniensis, a new species from the Guyana Shield (Siluriformes: Loricariidae) with a molecular and morphological description of the Pseudancistrus barbatus group
FIGURE 6. Plot showing the minimal interorbital distance as a function of SL for Pseudancistrus barbatus and P. depressus. Linear regressions obtained by the least square method.
FIGURE 2. Pseudancistrus corantijniensis MHNG 2672.074 in Pseudancistrus corantijniensis, a new species from the Guyana Shield (Siluriformes: Loricariidae) with a molecular and morphological description of the Pseudancistrus barbatus group
FIGURE 2. Pseudancistrus corantijniensis MHNG 2672.074 (SU05-321), paratype, dorsal view showing the marked change in spots size in the posterior part of the head. Photo by R. Covain.
FIGURE 1. Pseudancistrus corantijniensis MHNG 2672.092 in Pseudancistrus corantijniensis, a new species from the Guyana Shield (Siluriformes: Loricariidae) with a molecular and morphological description of the Pseudancistrus barbatus group
FIGURE 1. Pseudancistrus corantijniensis MHNG 2672.092 (SU05-296), Holotype. Dorsal, lateral, and ventral views,
FIGURE 5 in Pseudancistrus corantijniensis, a new species from the Guyana Shield (Siluriformes: Loricariidae) with a molecular and morphological description of the Pseudancistrus barbatus group
FIGURE 5. Maximum Likelihood tree of the Guyanese derived Pseudancistus (-lnL = 3218.93185; gamma shape parameter = 0.613; number of categories = 6). Number above branches indicates bootstrap support. Cop. = Coppename basin; Cor. = Corantijn basin; Es. = Essequibo basin; Ma. = Maroni basin; Oy. = Oyapock basin; Su. = Suriname basin.
FIGURE 4 in Pseudancistrus corantijniensis, a new species from the Guyana Shield (Siluriformes: Loricariidae) with a molecular and morphological description of the Pseudancistrus barbatus group
FIGURE 4. Map of the Guyana Shield coastal rivers showing the sampling localities. Rectangle = P. nigrescens, round = P. corantijniensis, triangle = P. depressus, star = P. barbatus and diamond = P. niger. One symbol may cover more than one locality. We also present the type localities for each species given by filled symbols. The type locality of P. barbatus (Valenciennes, 1840) is the Mana River, while for P. depressus (Günther, 1868) it is the Suriname River, without further indications.
FIGURE 9 in A new highland species of Arthrosaura Boulenger, 1885 (Squamata: Gymnophthalmidae) from Maringma tepui on the border of Guyana and Brazil
FIGURE 9. Arthrosaura hoogmoedi sp. nov., preserved female holotype (IRSNB 2653), 59.3 mm SVL. A: Detail of dorsal scales at midbody showing the 3–4 middorsal scales noticeably narrower than contiguous dorsal scales. B: Detail of perianal region.
FIGURE 7 in A new highland species of Arthrosaura Boulenger, 1885 (Squamata: Gymnophthalmidae) from Maringma tepui on the border of Guyana and Brazil
FIGURE 7. Lower eyelid condition in Arthrosaura hoogmoedi sp. nov. and two related Arthrosaura species. A: Semitransparent, unpigmented in A. kockii (IRSNB 15397). B: Semi-transparent, partly pigmented in A. guianensis (IRSNB 17343). C: Completely opaque, completely pigmented in A. hoogmoedi sp. nov. (IRSNB 2653, holotype).
FIGURE 6 in A new highland species of Arthrosaura Boulenger, 1885 (Squamata: Gymnophthalmidae) from Maringma tepui on the border of Guyana and Brazil
FIGURE 6. Arthrosaura hoogmoedi sp. nov., female holotype (IRSNB 2653), 59.3 mm SVL. Dorsal, ventral, and lateral views of head. Scale bar is 2 mm.
FIGURE 8 in A new highland species of Arthrosaura Boulenger, 1885 (Squamata: Gymnophthalmidae) from Maringma tepui on the border of Guyana and Brazil
FIGURE 8. Arthrosaura hoogmoedi sp. nov., female holotype (IRSNB 2653), 59.3 mm SVL. A: Ventral view in life. B: Detail of the gular region in life.
FIGURE 4 in A new highland species of Arthrosaura Boulenger, 1885 (Squamata: Gymnophthalmidae) from Maringma tepui on the border of Guyana and Brazil
FIGURE 4. Maringma tepui. Author's tent on the very top of the mountain; looking SWW, Mount Roraima is hidden by clouds (28 November 2007).
FIGURE 5 in A new highland species of Arthrosaura Boulenger, 1885 (Squamata: Gymnophthalmidae) from Maringma tepui on the border of Guyana and Brazil
FIGURE 5. Arthrosaura hoogmoedi sp. nov., female holotype (IRSNB 2653), 59.3 mm SVL. A: Dorsolateral view. B: Dorsal view.
FIGURE 2. Maringma tepui. A in A new highland species of Arthrosaura Boulenger, 1885 (Squamata: Gymnophthalmidae) from Maringma tepui on the border of Guyana and Brazil
FIGURE 2. Maringma tepui. A: Scenic view of the tepui from the east (20 November 2007). B: Dense vegetation on the summit plateau (28 November 2007).
FIGURE 1 in A new highland species of Arthrosaura Boulenger, 1885 (Squamata: Gymnophthalmidae) from Maringma tepui on the border of Guyana and Brazil
FIGURE 1. Area map of Maringma tepui showing the type locality of Arthrosaura hoogmoedi sp. nov. (blue dot). Coordinates and boundary with Brazil are approximate and based on the available map (note that there is a substantial difference in the country boundary between this map and that shown in Google Earth). Maps elaborated after "Roraima Sheet 40 SE" published by the Survey Department of Guyana, 1972, and a radar image of South America by NASA/JPL/ NIMA available at http://photojournal.jpl.nasa.gov/catalog/PIA03388.
FIGURE 10. A in A new highland species of Arthrosaura Boulenger, 1885 (Squamata: Gymnophthalmidae) from Maringma tepui on the border of Guyana and Brazil
FIGURE 10. A patch of Brocchinia tatei (Bromeliaceae), habitat on the summit plateau of Maringma tepui in which the holotype of Arthrosaura hoogmoedi sp. nov. was found.
FIGURE 3. Maringma tepui. A in A new highland species of Arthrosaura Boulenger, 1885 (Squamata: Gymnophthalmidae) from Maringma tepui on the border of Guyana and Brazil
FIGURE 3. Maringma tepui. A: View from the summit plateau of the mountain, looking to the west; Yakontipu is visible on the right (28 November 2007). B: Dense mist on the summit plateau, the usual climatic condition during our stay on the top of the tepui (25 November 2007).
FIGURE 9 in Lizard in the clouds: a new highland genus and species of Gymnophthalmidae (Reptilia: Squamata) from Maringma tepui, western Guyana
FIGURE 9. Everted hemipenis of the holotype of Pantepuisaurus rodriguesi gen. nov. sp. nov., (IRSNB 2650, left organ). A: Asulcate view. B: Sulcate view. C. Detail of mineralized spicules showing series of similar spicules interrupted by one enlarged central spicule. Scale bar is 1 mm. Photographs by Pedro Nunes.
FIGURE 8 in Lizard in the clouds: a new highland genus and species of Gymnophthalmidae (Reptilia: Squamata) from Maringma tepui, western Guyana
FIGURE 8. Pantepuisaurus rodriguesi gen. nov. sp. nov., male holotype (IRSNB 2650), 58.3 mm SVL. Detail of perianal region.
FIGURE 7 in Lizard in the clouds: a new highland genus and species of Gymnophthalmidae (Reptilia: Squamata) from Maringma tepui, western Guyana
FIGURE 7. Pantepuisaurus rodriguesi gen. nov. sp. nov., male holotype (IRSNB 2650), 58.3 mm SVL. A: Ventral view. B: Detail of the gular region.
FIGURE 5 in Lizard in the clouds: a new highland genus and species of Gymnophthalmidae (Reptilia: Squamata) from Maringma tepui, western Guyana
FIGURE 5. Pantepuisaurus rodriguesi gen. nov. sp. nov., male holotype (IRSNB 2650), 58.3 mm SVL. A: Dorsolateral view. B: Detail of head and neck region.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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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.