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FIGURE 29 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 29 | Radiograph of scapulocoracoid of Paratrygon parvaspina, MZUSP 117836 (paratype), upper view. Abbreviations see Fig. 15. Arrow indicates to the anterior portion of specimen.
FIGURE 23 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 23 | Dorsal view and details of central disc dermal denticles of Paratrygon parvaspina, MZUSP 117836 (paratype) (SEM images). A. and B. dorsal view of some denticles. C. dorsal and D. lateral details of central dermal denticles. ccp = central coronal plate, lcr = lateral coronal ridge.
FIGURE 22 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 22 | Dermal denticles on the dorsal disc and tail of Paratrygon parvaspina, IAvH-P 12447 (holotype). A. distribution of dermal denticles. B. detail of some thorns with tubercular base on the posterior margin of the disc and tail's basis. C. detail of basal plates of these tubercular spines. bp = basal plate.
FIGURE 20 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 20 | Paratypes of Paratrygon parvaspina. IAvH-P 12446, juvenile male, 212 mm DW, from Tomo river. A. dorsal and B. ventral views. MZUSP 117836, juvenile female, 266 mm DW, from Orinoco river. C. dorsal and D. ventral views.
FIGURE 24 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 24 | Dorsal and lateral rows of thorns in Paratrygon parvaspina. A. and B. IAvH-P 12447 (holotype). C. IAvH-P 4684. D. detail of dorsal pointed spines on the tail of IAvH-P 12441 (paratype). E. IAvH-P 12446 (paratype). F. MZUSP 117836 (paratype).
FIGURE 42 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 42 | Details of dermal denticles in central disc of Paratrygon aiereba (SEM images) in dorsal view. A. MZUSP 103896, adult male, 508 mm DW, from Tapajós river. B. and C. INPA 1331. D. and E. MUSM 47105. F. MZUSP 117831. ccp = central coronal plate, lcr = lateral coronal ridge.
FIGURE 19 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 19 | Holotype and paratype of Paratrygon parvaspina. Holotype, IAvH-P 12447, adult female, 450 mm DW, from Bita river. A. dorsal and B. ventral views. Paratype, IAvH-P 12441, juvenile female, 255 mm DW, from Tomo river. C. dorsal and D. ventral views.
FIGURE 18 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 18 | Distribution of Paratrygon orinocensis throughout Orinoco basin. This species occurs in the mid and lower portion of Orinoco river, and mid portion of Apure river. See Discussion to a more complete discussion about its distribution. Star = holotype specimen (IAvH-P 11939) locality.
FIGURE 33 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 33 | Neotype of Paratrygon aiereba, MZUSP 117155, adult male, 603 mm DW, from Marajó bay. A. dorsal and B. ventral views.
FIGURE 17 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 17 | Radiographs of pelvic girdle of Paratrygon orinocensis, upper views. A. USNM 233944b (paratype). B. MZUSP 117220 (paratype). IP = iliac process, ISP = ischial process, LPP = lateral prepelvic process, OF = obturator foramen, PB = puboischiadic bar. Arrow indicates to the anterior portion of specimens.
FIGURE 21 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 21 | Lateral view of spiracles and spiracles process of Paratrygon parvaspina. A. IAvH-P 4684, adult female, 345 mm DW, from Tomo river. B. IAvH-P 12441 (paratype). C. IAvH-P 12446 (paratype). D. MZUSP 117836 (paratype).
FIGURE 15 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 15 | Radiographs of scapulocoracoid of Paratrygon orinocensis, upper views. A. USNM 233944b (paratype). B. MZUSP 117220 (paratype). CB = coracoid bar, DLC = dorsolateral crest, MSC = mesocondyle, MTC = metacondyle, PC = procondyle, SCP = scapular process. Arrow indicates to the anterior portion of specimens.
FIGURE 16 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 16 | Radiographs of basal elements of pectoral fin of Paratrygon orinocensis, USNM 233944b (paratype), upper views. A. propterygium region. B. mesopterygium region. C. metapterygium region. ANT = antorbital cartilage, FSP = first segment of propterygium, JMR = junction of medial radials, MSP = mesopterygium, MTP = metapterygium, PPT = propterygium, PSM = posterior segments of metapterygium, SAS = small articulation surface. Arrow indicates to the anterior portion of specimens.
FIGURE 28 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 28 | Radiograph of synarcual cartilage of Paratrygon parvaspina, MZUSP 117836 (paratype), upper view. Abbreviations see Fig. 14. Arrow indicates to the anterior portion of specimen.
FIGURE 14 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 14 | Radiographs of synarcual cartilage of Paratrygon orinocensis, upper views. A. USNM 233944b (paratype). B. MZUSP 117220 (paratype). AVC = anterior ventral condyle, DMC = dorsomedial crest, DS = dorsal socket, LS = lateral stay, PVC = posterior ventral condyle, SNC = spinal nerve canal, SNF = spinal nerve foramen. Arrow indicates to the anterior portion of specimens.
FIGURE 12 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 12 | Ventral canals of lateral line system in Paratrygon orinocensis, MZUSP 117220 (paratype). A. distribution of all ventral canals. B. detail of the anterior central disc ventral canals. ang = angular component of hyomandibular canal, HMD = hyomandibular canal, IOC = infraorbital canal, JFC = junction of the four canals, jug = jugular component of hyomandibular canal, MNC = mandibular canal, NAS = nasal canal, nil = nasointernal loop, orb = orbitonasal component of supraorbital canal, pnc = prenasal component of nasal canal, pnl = prenasal loop, pst = posterior subpleural tubules, sbr = subrostral component of supraorbital canal, spc = subpleural component of hyomandibular canal, spl = subpleural loop, SPO = supraorbital canal, spt = subpleural tubule, sub = suborbital component of supraorbital canal, vS = vesicles of Savi.
FIGURE 13 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 13 | Radiographs of neurocranium and mandibular arch of Paratrygon orinocensis, upper views. A. USNM 233944b (paratype). B. MZUSP 117220 (paratype). ANT = antorbital cartilage, DLP = dorsolateral process, FPF = frontoparietal component of fontanelle, FSP = first segment of propterygium, HYO = hyomandibula, IS = internasal septum, LP = lateral process, MC = Meckel's cartilage, NC = nasal capsule, PCF = precebral component of fontanelle, POP = postorbital process, PQ = palatoquadrate, PRO = propterygium, PRP = preorbital process, RPJ = rostral projection, SOC = supraorbital crest, SP = supraorbital process. Arrow indicates to the anterior portion of specimens.
FIGURE 11 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 11 | Dorsal view of caudal sting of Paratrygon orinocensis in six specimens. A. IAvH-P 11939 (holotype). B. IAvH-P 11940 (paratype). C. IAvH-P 11943. D. IAvH-P 12440, juvenile female, 249 mm DW, from Bita river. E. IAvH-P 12443. F. IAvH-P 12444.
FIGURE 26 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 26 | Ventral canals of lateral line system in Paratrygon parvaspina, IAvH-P 12446 (paratype). A. distribution of all ventral canals. B. detail of the anterior central disc ventral canals. Abbreviations see Fig. 12.
FIGURE 9 in Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba
FIGURE 9 | Posterior margin and tail's basis dermal denticles of Paratrygon orinocensis, MZUSP 117220 (SEM images). A. dorsal-lateral views of three dermal denticles showing the two morphological types: one more similar with the central disc dermal denticles (left down corner), and other more smiliar with thorns of tail's dorsal row (right down corner); left above a bud of a denticle. B. morphology detail of one pointed dermal denticle in lateral view. C. and D. lateral views of two dermal denticles. ccp = central coronal plate, lcp = lateral coronal ridge.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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