Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
228
datasets available to search
ShareScore release 0.9.0
Dataset results
228 results for “Potamotrygon”
FIGURE 17 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 17. Skeletal features, dermal denticles and dorsal tail spines of Potamotrygon schroederi. A) Head, visceral arch, and scapular region. B) Close-up of angular cartilage. C) Base of tail region showing arrangement of dorsal spines and denticles. Based on AUM 44507 (adult male, 780 mm TL).
FIGURE 15 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 15. Morphological details of Potamotrygon schroederi from Rio Negro, Brazil. A) Dorsal anterior head and snout region (MZUSP 108453). B) Ventral snout and nasoral region (MZUSP 108452). C) Dorsal view of pelvic fin (MZUSP 108452). D) Ventral view of pelvis fins (MZUSP 108455). E) Dorsal view of posterior disc and tail base region in freshly captured adult female specimen (depicted Figure 12A; specimen not preserved). F) Detail of lateral disc color in freshly captured adult female specimen (depicted in Figure 12D; specimen not preserved). Scale bars in A, B, E and F = 5 cm; in C and D = 2.5 cm
FIGURE 13 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 13. Dorsal (A) and ventral (B) views of Potamotrygon schroederi from Barcelos, Rio Negro, Brazil (MZUSP 108452, 741 mm TL, 444 mm DL, 395 mm DW).
FIGURE 11 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 11. Morphological details, in dorsal view, of freshly captured specimens of Potamotrygon schroederi from Venezuela (whole specimens shown in Figure 10). A) Orbital region of AUM 44507 (adult male, 780 mm TL). B) Orbital region of ANSP 191999 (adult female, 605 mm TL). C) Base of tail and posterior disc (AUM 44507), showing claspers. D) Base of tail and posterior disc (ANSP 191999). E) Ventral view of pelvic fins (ANSP 191999). F) Nasoral region (ANSP 191999). Scale bar = 5 cm, except for F (= 2 cm).
FIGURE 16 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 16. Dorsal tail base region in specimens of Potamotrygon schroederi from Rio Negro, Brazil, showing distinct coloration and arrangement of tail spines and denticles. A-B) MZUSP 108453 (689 mm TL, 444 mm DL, 409 mm DW). C-D) MZUSP 108452 (741 mm TL, 444 mm DL, 395 mm DW). E) MZUSP 108445 (501 mm TL, 320 mm DL, 290 mm DW). F) MZUSP 108455 (319 mm TL, 202 mm DL, 188 mm DW). Scale bars = 5 cm.
FIGURE 14 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 14. Potamotrygon schroederi from Barcelos, Rio Negro, Brazil, in dorsal view. A) MZUSP 108453 (689 mm TL, 444 mm DL, 409 mm DW). B) MZUSP 108445 (501 mm TL, 320 mm DL, 290 mm DW).
FIGURE 12 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 12. Dorsal views of freshly captured specimens of Potamotrygon schroederi from Rio Negro, near Barcelos, Brazil. A, B and D discarded after problems with temporary storage in Manaus. C) MZUSP 108453. Photographs by M. V. Domingues and N. Luchetti.
FIGURE 8 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 8. Río Nanay at Pampa Chica, large sandy beach along left bank of hairpin curve in river (flowing towards right), approximately 11 river km upstream from confluence with Río Amazonas and 4 km west of Iquitos center. Photo taken August 18, 2003. Large sandy beach where ANSP 182452 was collected in 2005 is largely submerged. Photograph by M. Sabaj Pérez.
FIGURE 9 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 9. Remains of holotype of Potamotrygon schroederi (MHNLS 2504, Río Apure, Boca Apurito, Orinoco basin). A) Distal tail region with caudal stings. B) Nasoral region. C) Lateral portion of disc. Holotype was originally reported as a very large female (995 mm TL, 600 mm DL, 524 mm DW).
FIGURE 6 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 6. Morphological details of distal tail region in Potamotrygon tigrina, n. sp., showing arrangement of dorsal tail spines, denticles, caudal stings, and vertebrae. A) MUSM 39978 (holotype; 495 mm TL, 271 mm DL, and 258 mm DW), lacking caudal stings. B) ANSP 191988 (paratype; 560 mm TL, 282 mm DL, 250 mm DW).
FIGURE 7 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 7. Geographic distributions of Potamotrygon tigrina, n. sp. (star, type locality), and P. schroederi (circles, type locality solid) examined in this study. Base map by M. J. Weitzman.
FIGURE 5 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 5. Details of the skeleton and dermal covering in Potamotrygon tigrina, n. sp., from holotype (MUSM 39978, 495 mm TL, 271 mm DL, and 258 mm DW). A) Splanchnocranium and scapular region (most of gill arches removed). B) Close-up of angular cartilage. C) Base of tail region showing arrangement of dorsal spines and denticles.
FIGURE 4 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 4. Paratype of Potamotrygon tigrina, n. sp. in dorsal (A) and ventral (B) views (ANSP 191988, preadult female, Peru, Departamento Loreto, Iquitos, Río Nanay; 560 mm TL, 282 mm DL, 250 mm DW; specimen dry, color faded).
FIGURE 3 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 3. Morphological details of holotype of Potamotrygon tigrina, n. sp. (MUSM 39978). A) Dorsal head and snout region. B) Nasoral region. C) Posterior disc and dorsal tail base region. D) Ventral view of pelvic fins. E) Posterior right side of disc, in dorsal view. F) Dorsal view of pelvic fins. Scale bars = 1 cm.
FIGURE 2 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 2. Freshly captured holotype of Potamotrygon tigrina, n. sp., in dorsal view, showing live coloration (MUSM 39978, juvenile male, Río Nanay, near Iquitos, Peru; 495 mm TL, 271 mm DL, and 258 mm DW).
FIGURE 1 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 1. Holotype of Potamotrygon tigrina, n. sp., in dorsal (A) and ventral (B) views (MUSM 39978, juvenile male, Río Nanay, near Iquitos, Peru; 495 mm TL, 271 mm DL, and 258 mm DW).
FIGURE 11 in A New Species Of Neotropical Freshwater Stingray Of The Genus Potamotrygon Garman, 1877 From The Río Madre De Díos, Peru (Chondrichthyes: Potamotrygonidae)
FIGURE 11: Morphological details of hyomandibular arch of Potamotrygon tatianae sp. nov. (based on MZUSP 107670, male, 300 mm DW). Abbreviations: aac, anterior angular cartilage; hyo, hyomandibula; Mc, Meckel's cartilage; pac, posterior angular cartilage; pq, palatoquadrate; ptp, posterior triangular projection.
FIGURE 13 in A New Species Of Neotropical Freshwater Stingray Of The Genus Potamotrygon Garman, 1877 From The Río Madre De Díos, Peru (Chondrichthyes: Potamotrygonidae)
FIGURE 13: Specimen of Potamotrygon falkneri (ANSP 142483, male, 265 mm DW) in dorsal (A) and ventral (B) views (Río Manu below Boca Pinquén, Río Madre de Díos, Río Madeira basin, Peru).
FIGURE 12 in A New Species Of Neotropical Freshwater Stingray Of The Genus Potamotrygon Garman, 1877 From The Río Madre De Díos, Peru (Chondrichthyes: Potamotrygonidae)
FIGURE 12: Map showing geographic distribution of Potamotrygon tatianae sp. nov. Star indicates collection locality of specimens and all of type-species.
FIGURE 9 in A New Species Of Neotropical Freshwater Stingray Of The Genus Potamotrygon Garman, 1877 From The Río Madre De Díos, Peru (Chondrichthyes: Potamotrygonidae)
FIGURE 9: Ventral lateral line canal system of Potamotrygon tatianae sp. nov. (MZUSP 107669, male, 293 mm DW). Prenasal canal is not depicted in figure. A) Overall canal arrangement. B) Anterior disc region amplified highlighting separate components of canals. Abbreviations: ast, anterior subpleural tubules; hjc, hyomandibular jugular component; hsc, hyomandibular subpleural component; hyoc, hyomandibular canal; ioc, infraorbital canal; iol, infraorbital loop; jug, jugular canal; man, mandibular canal; nas, nasal canal; ocs, orbitonasal component of supraorbital canal; pnl, prenasal loop; pst, posterior subpleural tubule; sci, suborbital component of infraorbital canal; soc, supraorbital canal; sol, suborbital loop; spl, subpleural loop.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.